化学及化工专业词汇英语翻译(A-C)3
化学及化工专业词汇英语翻译(A-C)3- -
bsp;液比
bath solution 电解液
bath voltage 浴电压
bathochrome 深色基团
bathochromic effect 增色效应bathochromic shift 红移
bating 软化
battery 蓄电池
battery acid 蓄电池用酸
battery plate 蓄电池极板
baudish's reagent 铜铁灵
baume degree 波美度
baume hydrometer 波美比重计
bauxite 铝土矿
bauxite brick 铝矾土砖
bauxite treating 铝土处理
bayer's method 拜尔法
bayer's process 拜尔法
bead polymerization 粒状聚合
bead reaction 熔珠反应
bead tube 熔珠管
beadlet 珍珠
beaker 杯
bean oil 豆油
bearing metal 轴承合金
beater 打浆机
bebeerine 比比林
beckmann rearrangement 贝克曼转位beckmann thermometer 贝克曼温度计becquerel rays 贝壳勒尔射线
beer wort 麦芽汁
beer yeast 啤酒酵母
beer's law 贝尔定律
beeswax 蜂蜡
beet sugar 甜菜糖
behenic acid 辣木子油酸
behenyl alcohol 二十二醇
beilstein's method 贝尔斯登方法
belite b 盐
bell metal 钟铜
bellmetal ore 黄锡矿
belt conveyor 带式运输机
bemegride 贝美格
bending strength 弯曲强度
benedict reagent 本尼迪特试剂bengal isinglass 琼脂
benne oil 芝麻油
bentonite 膨润土
benzal 亚苄
benzal chloride 苄叉二氯benzalaniline 苄叉苯胺benzaldehyde 苯醛
benzamide 苯酰胺
benzanilide 苯酰替苯胺benzanthracene 苯并蒽benzanthrone 苯并蒽酮
benzene 苯
benzene complex 苯络合物
benzene diazonium chloride 氯化重氮苯benzene hexachloride 六六六benzene nucleus 苯核
benzene ring 苯环
benzene series 苯系
benzene sulfinic acid 苯亚磺酸benzene sulfonic acid 苯磺酸benzhydrol 二苯基甲醇
benzidine 联苯胺
benzidine rearrangement 联苯胺重排benzidine sulfate 硫酸联苯胺benzidine yellow 联苯胺黄
benzil 苯偶酰
benzilic acid 二苯乙醇酸
benzine 轻质汽油
benzoate 苯甲酸盐
benzoazurine 苯并天青精
benzoic acid 苯酸
benzoic anhydride 苯酸酐
benzoin 苯偶姻
benzoin condensation 苯偶姻缩合benzoin gum 安息香胶benzoinoxime 苯偶姻肟
benzol 苯
benzole 苯
benzonaphthol 苯酰萘酚
benzonitrile 苄腈
benzophenone 二苯甲酮
benzopurpurin 苯紫红素benzoquinone 苯醌benzotrichloride 苄川三氯benzotrifluoride 三氟甲苯
benzoyl chloride 苯酰氯
benzoyl peroxide 过氧化苯甲酰benzoylaminoacetic acid 马尿酸benzoylation 苯酰化酌benzoylglycine 苯甲酰基甘氨酸benzyl acetate 醋酸苄酯
benzyl alcohol 苄醇
benzyl benzoate 苯酸苄酯
benzyl bromide 苄基溴
benzyl cellulose 苄基纤维素benzyl chloride 苄基氯
benzyl cinnamate 肉桂酸苄酯benzyl formate 甲酸苄酯
benzyl mercaptane 苄硫醇
benzyl salicylate 水杨酸苄酯benzyl thiocyanate 硫氰酸苄酯benzylamine 苄胺
benzylaniline 苄基苯胺benzylation 苄化
benzylcarbinol 苯基乙醇benzylidene acetone 亚苄基丙酮benzylidene chloride 苄叉二氯benzylpenicillin 苄青霉素benzyne 苯炔
berbamine 小蘖胺
berberine 小蘖碱
berberine sulfate 硫酸小蘖碱bergamot oil 佛手柑油
berger agent 贝格尔试药
berger mixture 贝格尔混合物bergius' process 伯吉乌斯过程bergmann rearrangement 伯格曼换位berkelium 锫
berlin blue 普鲁士蓝
bernoulli's theorem 伯努利定理berthelot's principle 贝特洛原理berthollet salt 贝托莱盐
beryl 绿柱石
beryllate 铍酸盐
beryllia 氧化铍
beryllium 铍
beryllium acetate 醋酸铍
beryllium bronze 铍青铜
beryllium carbonate 碳酸铍
beryllium chloride 氯化铍
beryllium fluoride 氟化铍
beryllium hydroxide 氢氧化铍
beryllium metaphosphate 偏磷酸铍
beryllium nitrate 硝酸铍
beryllium nitride 氮化铍
beryllium oxide 氧化铍
bessel's differential equation 贝塞耳微分方程bessemer converter 贝赛麦转炉
beta brass 黄铜
beta decay 衰变
beta endorphin 内啡肽
beta rays 射线
betaine 甜菜碱
betatron 电子回旋加速器
biampe
rometry 双安培滴定
biaxial crystal 双轴晶体
bible paper 印度纸
bibliometer 吸水性能测定仪
bibulous paper 吸墨纸
bicarbonate 碳酸氢盐
bichromate 重铬酸盐
bichromate cell 重铬酸盐电池
bichromate titration 重铬酸盐滴定bichromated gelatine 铬煤
bicolorimeter 双色比色计
bicomponent fiber 双组分纤维
bicyclic compound 二环化合物
bicyclic terpene 双环萜烯
bidalotite 直闪石
biformity 二形
bile acid 胆汁酸
biliprotein 胆蛋白质
bilirubin 胆红素
biliverdin 胆绿素
bimetal 双金属
bimetallic instrument 双金属仪器
bimetallic temperature regulator 双金属温度第器bimetallic thermometer 双金属温度计
bimolecular reaction 双分子反应
binary acid 二元酸
binary alloy 二元合金
binary compound 二元化合物
binary electrolyte 二元电解质
binary mixture 二元混合物
binary separation 二元分离
binary solution 二元溶液
binary system 二元体系
binder 粘合剂
binding energy 键能
binding material 粘合剂
binding protein 结合蛋白质
bingham flow 宾汉怜
binocular microscope 双目显微镜
binomial distribution 二项式分布
binomial theorem 二项定理
binuclear complex 双核络合物
binuclear metallic complex salt 双核金属络合物盐bioassay 生物测定
biocatalysis 生物催化
biocatalyst 生物触媒
biocatalyzer 生物催化剂
biochemical analysis 生物化学分析biochemical oxygen demand 生化需氧量biochemical reaction 生物化学反应biochemical reactor 生化反应器
biochemistry 生物化学
biocide 杀虫剂
biocleaner 生物洗涤剂
biocollochemistry 生物胶体化学
biocolloid 生物胶体
biocomputer 生物计算机
biocytin 生物胞素
biocytinase 生物胞素酶
bioenergetics 生物能学
biogen 酵母促生物原
biogeochemistry 生物地球化学
biological assay 生物测定
biological ceramics 生物陶瓷
biological chemistry 生物化学
biological half life 生物半衰期
biological microscope 生物显微镜
biological oxidation 生物氧化
biological value 生物值bioluminescence 生物性光
biomass energy 生物质能
biophile element 亲生物元素biopolymer 生物高聚物
biopotency 生物效能
biorheology 生物龄
bios 酵母促生物
biose 乙糖
biosensor 生物传感器生物感测器biosurfactant 生物表面活性剂biosynthesis 生物合成
biosynthesis of fatty acids 脂肪酸生物合成biothermochemistry 生物热化学
biotin 生物素
biotin complex of yeast 酵母生物素络合物biotite 黑云母
biphenyl 联二苯
bipyridyl 联吡啶
biradical 双基
birefringence 双折射
birotation 双旋光
biscuit firing 素烧
bisilicate 二硅酸盐
bismarck brown 俾斯麦棕
bismuth 铋
bismuth chloride 氯化铋
bismuth compound 铋化合物
bismuth glance 辉铋矿
bismuth hydroxide 水氧化铋
bismuth iodide 碘化铋
bismuth nitrate 硝酸铋
bismuth ochre 糸矿
bismuth oxide 氧化铋
bismuth oxychloride 氯氧化铋
bismuth subcarbonate 碱式碳酸铋bismuth sulfate 硫酸铋
bismuth sulfide 硫化铋
bismuth telluride 碲化铋
bismuthate 铋酸盐
bismuthic acid 铋酸
bismuthine 辉铋矿
bismuthinite 辉铋矿
bismutite 泡铋矿
bistable system 双稳态系
bisulfate 硫酸氢盐
bisulfite 亚硫酸氢盐
bitartrate 酒石酸氢盐
bithionol 硫双二氯酚
bitter almond oil 苦杏仁油
bitter almond water 苦杏仁水
bitter salt 泻盐
bitter spar 白云石
bittern 盐卤
bitumen 地沥青
bitumen emulsion 沥青乳浊液bituminization 沥青化
bituminous coal 烟煤
bituminous coating 沥青涂层
bituminous varnish 沥青清漆
biuranate 重铀酸盐
biuret 缩二脲
biuret reaction 缩二脲反应
bivalence 二价
bivalent 二价的
bixin 胭脂嗜
blaching liquor 漂白液
black amber 黑琥珀
black ash 黑灰
black ash furnace 黑灰炉
black body 黑体
black body radiation 黑体辐射
black body temperature 黑体温度
black copper 粗铜
black damp 窒息气
black diamond 黑金刚石
black jack 闪锌矿
black liquor 黑
液
black phosphorus 黑磷
black pigment 黑色颜料
black powder 黑火药
black power 黑色火药
blaine permeability method 布莱因比面决定法blanc fixe 硫酸钡粉
blank test 空白试验
blast furnace 高炉
blast furnace cement 高炉水泥
blast furnace dust 高炉灰
blast furnace gas 高炉煤气
blast furnace slag 高炉矿渣
blasting agent 爆炸剂
blasting cap 雷管
blasting explosive 爆炸剂
blasting fuse 导火线
blasting gelatine 炸胶
blaze 火焰
bleach 漂白
bleach degree 漂白度
bleaching agent 漂白剂
bleaching clay 漂白土
bleaching earth 漂白土
bleaching powder 漂白粉
bleaching solution 漂白液
blende 闪锌矿
blender 混合机
blending naphtha 迪石脑油
blister 泡
blister copper 粗铜
blistering 起泡
block copolymer 嵌段共聚物
block diagram 方框图
block polymerization 本体聚合blocked operation 轮换操作
blood albumin 血白朊
blood charcoal 血炭
blood coal 血炭
blood group 血型
blood plasma 血浆
blood serum 血清
blood sugar 血糖
blotting paper 吸墨纸
blowback 逆吹
blowdown 吹除
blower 鼓风机
blowing agent 发泡剂
blowpipe 吹管
blowpipe analysis 吹管分析
blowpipe assay 吹管分析
blowpipe reaction analysis 吹管反应分析blowpipe test 吹管试验
blue glass 蓝玻璃
blue john 蓝荧石
blue pigment 蓝色颜料
blue powder 锌粉
blue print 蓝晒图
blue print paper 蓝图纸
blue shift 蓝移位
blue spar 天蓝石
blue water gas 蓝水煤气
blueprint machine 晒图机
bluing 发蓝处理
blushing 雾浊
board 纸板
boat 蒸发皿
boat conformation 船式构象
body centered cubic lattice 体心立方晶格body centered cubic structure 体心立方结构body centered lattice 体心晶格
boehmite 伯姆石
bog iron ore 沼铁矿
bohr radius 玻尔半径
bohr's atomic model 玻尔原子模型
bohr's theory 玻尔理论
boiled oil 沸炼油
boiler 锅炉
boiler cleaning 锅炉清洗
boiler compound 锅炉清洁剂
boiler incrustation 锅炉垢
boiler scale 锅炉垢
boiling 沸腾
boiling apparatus 蒸煮器
boiling heat 蒸发热
boiling point 沸点
boiling point curve 沸点线
boiling point depression 沸点降低
boiling point elevation 沸点升高
boiling point method 沸点升高法
boiling range 沸腾范围
boiling stone 沸腾石
boiling surface 沸腾面
boiling tube 沸腾管
bolometer 测辐射热器
bolter 筛
bolting cloth 筛布
boltzmann constant 波耳兹曼常数
boltzmann statistics 玻耳兹曼统计
boltzmann velocity distribution law 玻耳兹曼速度分布定律boltzmann's principle 波耳兹曼原理
bolus alba 瓷土
bomb 炸弹
bomb calorimeter 弹式量热器
bond 键
bond energy 键能
bond formation 键生成
bond length 键长
bond moment 键矩
bond order 键级
bond refraction 键折射
bond strength 键强度
bonding 粘合
bonding agent 键合剂
bonding orbital 成键轨道
bonding strength 键强度
bone ash 骨灰
bone black 骨炭
bone breaker 骨头粉碎机
bone china 骨灰瓷
bone fertilizer 骨粉肥料
bone glass 乳色玻璃
bone manure 骨粉肥料
bone meal 骨粉
bone superphosphate 骨粉过磷酸钙
bone tallow 骨脂
boord reaction 伯尔德反应
booster 升压机
boosting transformer 升压变压器
borane 甲硼烷
borate 硼酸盐
borax 硼砂
borax bead 硼砂珠
borax bead reaction 硼砂珠反应
borax glass 硼砂玻璃
borazine 硼唑
borazol 硼唑
bordeaux mixture 波耳多液
boric acid 硼酸
boric anhydride 硼酸酐
boride 硼化物
bornane 莰烷
borneol 龙脑莰醇
bornite 斑铜矿
bornyl acetate 醋酸冰片酯
bornyl chloride 氯化冰片
bornyl formate 甲酸冰片酯
bornyl isovaleriate 异戊酸冰片酯
bornyl salicylate 水杨酸冰片酯boroethane 乙硼烷
borofluorhydric acid 氟硼酸
borofluoric acid 氟硼酸
boron 硼
boron carbide&
nbsp;碳化硼
boron chloride 氯化硼
boron fertilizer 硼肥料
boron fluoride 氟化硼
boron hydride 氢化硼
boron nitride 一氮化硼
boron oxide 氧化硼
boron tribromide 三溴化硼
borosilicate 硼硅酸盐
borosilicate glass 硼硅玻璃
bose einstein's statistics 玻色爱因斯坦统计bottle brush 洗瓶刷
bottle filler 装瓶机
bottle glass 瓶玻璃
bottle washer 洗瓶机
bottler 装瓶机
bottom ash 底灰
bottom fermentation 底层发酵
bottom oil 残余油
bottom steam 塔底蒸汽
bottom yeast 底酵母
bottoms 蒸馏残渣
bound charge 束缚电荷
bound electron 束缚电子
bound water 结合水
boundary condition 边界条件
boundary layer 边界层
boundary line 境界线
boundary value problem 边值问题bournonite 车轮矿
bouveault blanc reaction 玻沃布兰反应bouveault blanc reduction 玻沃布兰还原
boyle gay lussac's law 玻意耳盖吕萨克定律boyle mariotte's law 玻意耳马里奥特定律boyle temperature 玻意耳温度
bradykinin 血管舒缓激肽
bragg's formula 布雷格公式
branch 分支
branched chain 支链
branching coefficent 支化度
branching ratio 分支比
brass 黄铜
brass plating 镀黄铜
brassicasterol 芜莆甾醇
brassidic acid 巴惟酸
brassinolide 黄铜质
braun tube 布朗管
bravais space lattice 布拉维空间晶格brazilein 巴戊
brazilin 巴戊木红
breadth of spectral line 谱线幅
breaker 破碎机
breaking load 断裂载重
breaking stress 破坏应力
breaking test 破坏试验
breakthrough concentration 突破浓度breathing 通风
breeze 焦粉
bremen blue 布勒门蓝
bremsstrahlung 韧致辐射
brewing 酿造
brick 砖
brick for sintering zone 烧结带用砖
brick kiln 烧砖炉
bridge wall 隔墙
bridged bond 桥键
bridged complex 桥络体
bridged linkage 桥键
bridging 交联
bridging ligand 架桥配位体
bright coal 亮煤
bright plating 光亮电镀
bright stock 精制润滑油
brightener 抛光剂
brightness 亮度
brilliant yellow 亮黄
brimstone 硫黄石
brine 盐水
brinell hardness 布里涅耳硬度
brinell hardness tester 布氏硬度试验机briquet 压制成块
briquet coke 煤砖焦炭
briquetting machine 压块机
brisance 爆炸威力
brittle fracture 脆裂
brittle temperature 脆化温度brittleness 脆性
bromal 溴醛
bromate 溴酸盐
bromate titration 溴酸盐滴定bromatimetry 溴酸盐滴定
bromic acid 溴酸
bromide 溴化物
bromimetry 溴滴定
bromination 溴化
bromine 溴
bromine fluoride 氟化溴
bromine number 溴值
bromine value 溴值
bromine water 溴水
bromoacetic acid 溴乙酸bromoacetone 溴丙酮bromobenzene 溴苯
bromobenzoic acid 溴苯甲酸bromocamphor 溴代樟脑bromochloroethane 溴氯乙烷bromocresol purple 溴甲酚红紫bromodiethylacetylurea 邻溴代殊己酰脲bromoform 溴仿
bromometry 溴滴定
bromophenol 溴苯酚
bromophenol blue 溴酚蓝bromopicrin 硝基溴仿
bromostyrene 溴苯乙烯bromosuccinic acid 溴代丁二酸bromothymol blue 溴百里酚蓝bromyrite 溴银矿
bronze 青铜
bronze plating 镀青铜
bronzing 镀青铜
brown coal 褐煤
brown pigment 褐色素
brown ring reaction 棕环试验
brown ring test 棕环试验
brown sugar 黄糖
brownian motion 布朗运动
brownian movement 布朗运动
broxyquinoline 二溴羟喹
brucine 二甲氧基马钱子碱
brucite 水滑石
brunauer emmett teller equation 布鲁诺埃梅特特勒方程式brunswick blue 布仑司维克蓝
bubble 气泡
bubble cap 泡罩
bubble chamber 泡沫箱
bubble cleaning of gas 泡沫式气清洗
bubble gauge 气泡指示器
bubble plate 泡罩板
bubble point 始沸点
bubbling 起泡
buchner flask 布氏玻璃瓶
buchner funnel 布氏漏斗
bucket conveyer 斗式运输器
bucket elevator 斗式提升机
budbreak 发芽
buffer 缓冲剂
buffer action 缓冲酌
buffer battery 缓冲电池
buffer capacity 缓冲能力
buffer salts 缓
冲盐
buffer solution 缓冲溶液
buffer tank 缓冲柜
bufotalin 蟾蜍他灵
built up film 累积膜
bulk density 体积密度
bulk factor 体积因素
bulk modulus 体积弹性模量
bulk polymerization 本体聚合
bulking agent 填充剂
bumping 崩沸
bunker oil 船用油
bunsen burner 本生灯
bunsen cell 本生氏电池
buoyancy 浮力
buret 量管
buret clamp 滴定管夹
buret clamp pincers 滴定管夹
buret stand 滴定管架
burner 灯
burning furnace 燃烧炉
burning point 燃烧点
burning rate 燃烧速率
burning velocity 燃烧速度
burning zone 燃烧区
burnt alum 烧茂
burnt gypsum 烧石膏
burnt lime 生石灰
bursting charge 爆裂药
bursting test 破裂试验
butadiene 丁二烯
butadiene acrylonitrile rubber 丁二烯丙烯腈橡胶butadiene rubber 丁二烯橡胶
butadiene styrene rubber 丁二烯苯乙烯橡胶butane 丁烷
butanedioic acid 琥珀酸
butanediol 丁二醇
butanoic anhydride 丁酐
butanol 丁醇
butanone 丁酮
butene 丁烯
butenediol 丁烯二醇
butine 丁炔
butter 奶油
butyl acetate 醋酸丁酯
butyl alcohol 丁醇
butyl benzoate 苯酸丁酯
butyl benzyl phthalate 酞酸丁苄酯
butyl bromide 丁基溴
butyl chloride 丁基氯
butyl cyanide 戊腈
butyl formate 甲酸丁酯
butyl iodide 碘丁烷
butyl lactate 乳酸丁酯
butyl oleate 油酸丁酯
butyl rubber 丁基橡胶
butyl stearate 硬脂酸丁酯
butylamine 丁胺
butylation 丁基化
butylene 丁烯
butylene glycol 丁烯二醇butylene oxide 丁撑氧butynediol 丁炔二醇
butyral resin 聚乙烯醇缩丁醛butyraldehyde 丁醛butyrate 丁酸酸盐
butyric acid 丁酸
butyric anhydride 丁酐butyroin 丁偶姻butyrolactone 丁内酯butyrometer 乳脂计butyrone 酪酮
butyronitrile 丁腈
butyryl 丁酰
by pass pipe 旁通管
by product 副产物bytownite 倍长石
c aci
d c 酸
c stage resin c 级尸
c2chemistry c2化学cabinet dryer 干燥箱
cable lacquer 电缆漆
cable oil 电缆油
cacao butter 可可脂
cacodyl chloride 卡可基氯cacodyl oxide 卡可基氧cacodylate 卡可酸盐cacodylic acid 卡可酸cacotheline 卡可伍cadalene 卡达萘cadaverine 尸胺
cadinene 杜松烯
cadmium 镉
cadmium acetate 醋酸镉cadmium bromide 溴化镉cadmium carbonate 碳酸镉cadmium chloride 氯化镉cadmium hydroxide 氢氧化镉cadmium iodide 碘化镉cadmium nitrate 硝酸镉cadmium plating 镀镉cadmium red 镉红
cadmium selenide 硒化镉
cadmium standard cell 镉标准电池cadmium sulfate 硫酸镉
cadmium sulfide 硫化镉
cadmium yellow 镉黄
caffeic acid 咖啡酸
caffeine 咖啡碱
cage compound 笼状化合物
cajeput oil 白千层油
cake 滤渣
caking 粘结
caking agent of coal 煤粘结剂caking coal 粘结煤
caking property 粘结性
calamine 异极矿
calaverite 碲金矿
calciferol 钙化醇
calcification 钙化酌
calcimeter 碳酸计
calcination 煅烧
calcined clay 煅烧的粘土
calcined gypsum 烧石膏
calcined magnesia 煅镁氧
calcined phosphate fertilizer 烧制磷肥calcining 煅烧
calcining furnace 煅烧炉
calcining zone 煅烧带
calcite 方解石
calcitonin 降钙素
calcium 钙
calcium aluminate 铝酸钙
calcium antagonist 钙拮抗剂calcium arsenate 砷酸钙
calcium arsenite 亚砷酸钙
calcium carbide 碳化钙
calcium carbonate 碳酸钙
calcium chlorate 氯酸钙
calcium chloride 氯化钙
calcium chloride tube 氯化钙管calcium chromate 铬酸钙
calcium cyanamide 氰氨化钙calcium cyanide 氰化钙
calcium fluoride 氟化钙
calcium hydride 氢化钙
calcium hydrosulfide 氢硫化钙
calcium hydroxide 氢氧化钙
calcium iodide 碘化钙
calcium lactate 乳酸钙
calcium monohydrogenphosphate 磷酸一氢钙calcium nitrate 硝酸钙
calcium oxide 氧化钙
calcium pantothenate 泛酸钙
ca
lcium phosphate 磷酸钙
calcium phosphide 磷化钙
calcium rhodanide 硫氰酸钙
calcium silicate 硅酸钙
calcium sulfate 硫酸钙
calcium sulfide 硫化钙
calcium thiocyanate 硫氰酸钙
calcium tungstate 钨酸钙
calcon 钙试剂
calculus of variations 变分法
calender 砑光机
calender bowl 砑光滚筒
calender roller 砑光滚筒
calendering 砑光
calibration 校准
calibration curve 标定曲线
calibration error 标定误差
calibration reference 校准基准
caliche 生硝
calico printing 棉布印花
californium 锎
calking compound 嵌缝填料
calomel 甘汞
calomel electrode 甘汞电极
calomel half cell 甘汞半电池
calorie 卡
calorific capacity 热容量
calorific equivalent 热当量
calorific value 热值
calorification 发热
calorifics 热学
calorimeter 量热器卡计
calorimetry 量热
calory 卡
campesterol 芸苔甾醇
camphane 莰烷
camphene 莰烯
camphor 樟脑
camphor oil 樟脑油
canada balsam 加拿大胶
canada turpentine 加拿大胶
canal dryer 管道干燥器
cananga oil 衣兰油
canavanine 刀豆氨酸
candelilla wax 小烛石
candle coal 烛煤
candle filter 滤烛
candle moulding machine 制烛机
cane 甘蔗
cane sugar 蔗糖
cannabidiol 大麻二酚
cannabinol 大麻醇
cannel coal 烛煤
cannizzaro reaction 坎尼扎罗反应canonical ensemble 正则系综
canonical formula 极限构造式
canonical variable 正则变量
cantharides camphor 芫菁素
cantharidin 芫菁素
caoutchouc 生橡胶
cap 盖罩;雷管
capacitative current 容性电流
capacity 容量
capacity current 容性电流
capillar activity 毛细活性
capillarimeter 毛细管检液仪
capillarity 毛细管现象
capillary action 毛细管酌
capillary active substance 毛细管活动物质capillary analysis 毛细管分析
capillary attraction 毛细管引力
capillary condensation 毛细管凝聚
capillary electrometer 毛细管静电计capillary gas chromatography 毛细管气相色谱capillary phenomenon 毛细管现象
capillary pipet 毛细吸管
capillary tube 毛细管
capillary tube method 毛细管法
capillary viscometer 毛细管粘度计
capillator 毛细管比色计capillometer 毛细管测试仪caprate 癸酸盐
capric acid 癸酸
caproic acid 己酸
caprolactam 己内酰胺capronaldehyde 己醛
caprone 卡普纶
capryl acetate 醋酸己酯
caprylic acid 辛酸
caprylic alcohol 辛醇
caprylic aldehyde 辛醛capsaicin 辣椒素
capsaicine 辣椒素
capsanthin 辣椒质
capsule 胶囊
captan 卡菌丹
captax 卡普踏克斯
capture 捕获
caramel 焦糖
carane 蒈
carat 开
caraway oil 苋蒿子油carbamate 氨基甲酸盐
carbamic acid 氨基甲酸carbamide 脲
carbamyl chloride 氨基甲酰氯carbanilide 碳酰替
carbanion 负碳离子
carbazole 咔唑
carbene 炭青质
carbene complex 碳烯复体carbenium ion 碳正离子
carbide 碳化钙
carbide furnace 碳化炉
carbide slag 碳化物炉渣carbinol 甲醇
carbocation 阳碳离子carbocyclic compound 碳环化合物carbohydrase 糖酶carbohydrate 碳水化合物carboids 油焦质
carbolic acid 石碳酸
carbolic oil 酚油
化学专业英语翻译1
01.THE ELEMENTS AND THE PERIODIC TABLE 01元素和元素周期 表。 The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The number of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus. This total is called the mass number, A. The number of neutrons in an atom, the neutron number, is given by the quantity A-Z. 原子核中的质子数的原子称为原子序数，或质子数，卓电子数的电中性的原子也等于原子序数Z，总质量的原子是非常接近的总数量的质子和中子在原子核。这被称为质量数，这个数的原子中的中子，中子数，给出了所有的数量 The term element refers to, a pure substance with atoms all of a single kind. To the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior. At present all the atoms from Z = 1 to Z = 107 are known; there are 107 chemical elements. Each chemical element has been given a name and a distinctive symbol. For most elements the symbol is simply the abbreviated form of
化学专业英语(修订版)翻译
01 THE ELEMENTS AND THE PERIODIC TABLE 01 元素和元素周期表 The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The number of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus. This total is called the mass number, A. The number of neutrons in an atom, the neutron number, is given by the quantity A-Z. 质子的数量在一个原子的核被称为原子序数,或质子数、周淑金、电子的数量在一个电中性原子也等于原子序数松山机场的总质量的原子做出很近的总数的质子和中子在它的核心。这个总数被称为大量胡逸舟、中子的数量在一个原子,中子数,给出了a - z的数量。 The term element refers to, a pure substance with atoms all of a single kind. T o the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior. At present all the atoms from Z = 1 to Z = 107 are known; there are 107 chemical elements. Each chemical element has been given a name and a distinctive symbol. For most elements the symbol is simply the abbreviated form of the English name consisting of one or two letters, for example: 这个术语是指元素,一个纯物质与原子组成一个单一的善良。在药房“客气”原子的原子数来确定它,因为它的性质是决定其化学行为。目前所有原子和Z = 1 a到Z = 107是知道的;有107种化学元素。每一种化学元素起了一个名字和独特的象征。对于大多数元素都仅仅是一个象征的英文名称缩写形式,一个或两个字母组成,例如: oxygen==O nitrogen == N neon==Ne magnesium == Mg
应用化学专业英语翻译完整篇
1 Unit5元素周期表 As our picture of the atom becomes more detailed 随着我们对原子的描述越来越详尽，我们发现我们陷入了进退两难之境。有超过100多中元素要处理，我们怎么能记的住所有的信息？有一种方法就是使用元素周期表。这个周期表包含元素的所有信息。它记录了元素中所含的质子数和电子数，它能让我们算出大多数元素的同位素的中子数。它甚至有各个元素原子的电子怎么排列。最神奇的是，周期表是在人们不知道原子中存在质子、中子和电子的情况下发明的。Not long after Dalton presented his model for atom( )在道尔顿提出他的原子模型（原子是是一个不可分割的粒子，其质量决定了它的身份）不久，化学家门开始根据原子的质量将原子列表。在制定像这些元素表时候，他们观察到在元素中的格局分布。例如，人们可以清楚的看到在具体间隔的元素有着相似的性质。在当时知道的大约60种元素中，第二个和第九个表现出相似的性质，第三个和第十个，第四个和第十一个等都具有相似的性质。 In 1869,Dmitri Ivanovich Mendeleev,a Russian chemist, 在1869年，Dmitri Ivanovich Mendeleev ,一个俄罗斯的化学家，发表了他的元素周期表。Mendeleev通过考虑原子重量和元素的某些特性的周期性准备了他的周期表。这些元素的排列顺序先是按原子质量的增加,,一些情况中, Mendeleev把稍微重写的元素放在轻的那个前面.他这样做只是为了同一列中的元素能具有相似的性质.例如,他把碲(原子质量为128)防在碘(原子质量为127)前面因为碲性质上和硫磺和硒相似, 而碘和氯和溴相似. Mendeleev left a number of gaps in his table.Instead of Mendeleev在他的周期表中留下了一些空白。他非但没有将那些空白看成是缺憾，反而大胆的预测还存在着仍未被发现的元素。更进一步，他甚至预测出那些一些缺失元素的性质出来。在接下来的几年里，随着新元素的发现，里面的许多空格都被填满。这些性质也和Mendeleev所预测的极为接近。这巨大创新的预计值导致了Mendeleev的周期表为人们所接受。 It is known that properties of an element depend mainly on the number of electrons in the outermost energy level of the atoms of the element. 我们现在所知道的元素的性质主要取决于元素原子最外层能量能级的电子数。钠原子最外层能量能级（第三层）有一个电子，锂原子最外层能量能级（第二层）有一个电子。钠和锂的化学性质相似。氦原子和氖原子外层能级上是满的，这两种都是惰性气体，也就是他们不容易进行化学反应。很明显，有着相同电子结构（电子分布）的元素的不仅有着相似的化学性质，而且某些结构也表现比其他元素稳定（不那么活泼） In Mendeleev’s table,the elements were arranged by atomic weights for 在Mendeleev的表中，元素大部分是按照原子数来排列的，这个排列揭示了化学性质的周期性。因为电子数决定元素的化学性质，电子数也应该（现在也确实）决定周期表的顺序。在现代的周期表中，元素是根据原子质量来排列的。记住，这个数字表示了在元素的中性原子中的质子数和电子数。现在的周期表是按照原子数的递增排列，Mendeleev的周期表是按照原子质量的递增排列，彼此平行是由于原子量的增加。只有在一些情况下（Mendeleev注释的那样）重量和顺序不符合。因为原子质量是质子和中子质量的加和，故原子量并不完全随原子序数的增加而增加。原子序数低的原子的中子数有可能比原子序数高的原
广告英语翻译常用词语
广告英语翻译常用词汇 产品远销英国、美国、日本、意大利和东南亚，深受消费者欢迎和好评Our products are sold in Britain, America, Japan, Italy and South East Asia and well appreciated by their purchasers. 畅销全球 selling well all over the world 典雅大方 elegant and graceful 定型耐久 durable modeling 方便顾客 making things convenient for customers 方便群众 making things convenient for the people; to suit the peo ple's convenience 方便商品 convenience goods 方便生活 bringing more convenience to the people in their daily life; prov iding amenities for the people; making life easier for the popula tion 各式俱全 wide selection; large assortment
顾客第一 Customers first 顾客是我们的皇帝 We take customers as our Gods. 规格齐全 a complete range of specifications; complete in specific ations 花样繁多 a wide selection of colours and designs 货色齐全 goods of every description are available. 客商第一，信誉第一 clients first, reputation first 款式多样 a great variety of models 款式活泼端庄 vivid and great in style 款式齐全 various styles 款式新颖 attractive designs; fashionable(in) style; novel (in) de sign; up-to-date styling 款式新颖众多 diversified latest designs 美观大方 elegant appearance 美观耐用 attractive and durable 品质优良，疗效显著，誉满全球，欢迎选购 excellent quality, evident effect, good reputation over the world, orders are welcome. 品种多样 numerous in variety 品种繁多 great varieties 品种齐全 complete range of articles; a great variety of goods
应用化学专业英语第二版万有志主编版课后答案和课文翻译
Uｎit 1 The RｏotｓoｆCｈemisｔry Ｉ．Ｃoｍpreｈensioｎ. 1。Ｃ 2. Ｂ3．D 4. C 5. B ＩI。Ｍａｋe ａsenｔeｎｃe ｏut of ｅach ｉｔem ｂy reaｒranging ｔhe wordｓin ｂracｋets. 1.Tｈｅｐuｒiｆｉcation of aｎorganｉc compounｄis usually a matter of consｉｄerａｂlｅdｉfｆicｕｌtｙ, and iｔis nｅcｅｓsaｒy to eｍploy vａrious methoｄs fｏr thｉｓpurpｏse。 2.Science is an ｅｖeｒ－iｎcｒｅasing boｄy ofａccｕｍｕlａｔed anｄ ｓｙsｔｅmatiｚed knowledｇe ａnd iｓalsｏan activｉty bｙwｈic ｈｋnowledge iｓｇenerated。 3.Lifｅ，aftｅr all, is onｌy cｈeｍistry,in faｃｔ, a sｍall example of ｃ hｅｍistry ｏbsｅｒved oｎａsｉngle munｄane pｌａnet。 4.Peoplｅaｒe made of molｅculｅｓ; sｏmｅｏf ｔhｅmｏleculｅs in p ｅople aｒe rａｔher ｓimple whｅreas otｈerｓａｒｅhｉghly compｌex。 5.Chｅｍistry ｉｓever preseｎｔin ｏｕｒｌｉves frｏm ｂｉｒtｈ tｏｄeａthｂeｃａｕse withoｕt chｅmｉｓtrｙｔhere iｓneither life nor deａth. 6.Maｔhｅｍaｔics apｐeａｒs ｔo be almost as humaｎkiｎｄand ａｌ ｓo ｐermeaｔeｓall aspeｃts of ｈuman life, aｌthough ｍａｎｙof us are ｎｏｔfuｌly ａwａrｅoｆtｈis. III。Tｒanｓlatioｎ. 1.（a)chｅmicaｌprｏcess (b) natuｒal scienｃe（c）the teｃhｎｉ ｑｕe of distｉllaｔioｎ 2.Iｔｉs theａtｏｍs that ｍａkｅuｐｉron, waｔeｒ，oｘygen and the lｉke/anｄso on／aｎｄsｏfortｈ/aｎd otherｗiｓe. 3.Cheｍisｔｒy haｓa very long hｉｓtorｙ, ｉnｆaｃｔ，human a ｃtivity in chｅｍｉstrｙgｏes bａｃk ｔo ｐreｒecｏrｄed tｉmｅｓ/pｒedatiｎg reｃｏrded times． 4.Aｃcoｒdｉng to/Froｍthe eｖapoｒaｔion oｆwaｔeｒ，pｅople know ／reaｌized ｔｈat ｌiquidｓcａn ｔurn/bｅ/changeｉｎto gases ｕndeｒcertain conditions/circｕmsｔance／enｖironment。 5.Yoｕｍusｔknow ｔhe propｅｒtieｓｏfｔｈe materiaｌbeｆore y ｏu use it. IＶ．Ｔrａnslation 化学是三种基础自然科学之一,另外两种是物理和生物.自从宇宙大爆炸以来，化学过程持续进行,甚至地球上生命的出现可能也是化学过程的结果。人们也许认为生命是三步进化的最终结果,第一步非常快，其余两步相当慢.这三步
常用专业术语翻译
1.素质教育：Quality Education 2. EQ：分两种，一种为教育商数Educational quotient，另一种情感商数Emotional quotient 3. 保险业：the insurance industry 4. 保证重点指出：ensure funding for priority areas 5. 补发拖欠的养老金：clear up pension payments in arrears 6. 不良贷款：non-performing loan 7. 层层转包和违法分包：mutlti-level contracting and illegal subcontracting 8. 城乡信用社：credit cooperative in both urban and rural areas 9. 城镇居民最低生活保障：a minimum standard of living for city residents 10. 城镇职工医疗保障制度：the system of medical insurance for urban workers 11. 出口信贷：export credit 12. 贷款质量：loan quality 13. 贷款质量五级分类办法：the five-category assets classification for bank loans 14. 防范和化解金融风险：take precautions against and reduce financial risks 15. 防洪工程：flood-prevention project 16. 非法外汇交易：illegal foreign exchange transaction 17. 非贸易收汇：foreign exchange earnings through nontrade channels 18. 非银行金融机构：non-bank financial institutions 19. 费改税：transform administrative fees into taxes 20. 跟踪审计：foolow-up auditing 21. 工程监理制度：the monitoring system for projects 22. 国有资产安全：the safety of state-owned assets 23. 过度开垦：excess reclamation 24. 合同管理制度：the contract system for governing projects 25. 积极的财政政策：pro-active fiscal policy 26. 基本生活费：basic allowance 27. 解除劳动关系：sever labor relation 28. 金融监管责任制：the responsibility system for financial supervision 29. 经济安全：economic security 30. 靠扩大财政赤字搞建设：to increase the deficit to spend more on development 31. 扩大国内需求：the expansion of domestic demand 32. 拉动经济增长：fuel economic growth 33. 粮食仓库：grain depot 34. 粮食收购企业：grain collection and storage enterprise 35. 粮食收购资金实行封闭运行：closed operation of grain purchase funds 36. 粮食销售市场：grain sales market 37. 劣质工程：shoddy engineering
化学专业英语翻译4
04.GROUPS IIIB—VIIIB ELEMENTS Group I-B includes the elements scandium, yttrium, lanthanum, and actinium1, and the two rare-earth series of fourteen elements each2—the lanthanide and actinide series. The principal source of these elements is the high gravity river and beach sands built up by a water-sorting process during long periods of geologic time. Monazite sand, which contains a mixture of rare earth phosphates, and an yttrium silicate in a heavy sand are now commercial sources of a number of these scarce elements. B组包括元素钪，钇，镧，和actinium1，和2稀土系列十四each2镧系和锕系元素的系列。这些元素的主要来源是重力高与海滩砂建立起来的water-sorting过程在漫长的地质年代。独居石砂，其中包含一个混合稀土磷酸盐，和一个钇硅酸盐在沉沙现在商业来源的一些这些稀有元素。 Separation of the elements is a difficult chemical operation. The solubilities of their compounds are so nearly alike that a separation by fractional crystallization is laborious and time-consuming. In recent years, ion exchange resins in high columns have proved effective. When certain acids are allowed to flow down slowly through a column containing a resin to which ions of Group III B metals are adsorbed, ions are successively released from the resin3. The resulting solution is removed from the bottom of the column or tower in bands or sections. Successive
《化学工程与工艺专业英语》课文翻译 完整版
Unit 1 Chemical Industry 化学工业 1.Origins of the Chemical Industry Although the use of chemicals dates back to the ancient civilizations, the evolution of what we know as the modern chemical industry started much more recently. It may be considered to have begun during the Industrial Revolution, about 1800, and developed to provide chemicals roe use by other industries. Examples are alkali for soapmaking, bleaching powder for cotton, and silica and sodium carbonate for glassmaking. It will be noted that these are all inorganic chemicals. The organic chemicals industry started in the 1860s with the exploitation of William Henry Perkin‘s discovery if the first synthetic dyestuff—mauve. At the start of the twentieth century the emphasis on research on the applied aspects of chemistry in Germany had paid off handsomely, and by 1914 had resulted in the German chemical industry having 75% of the world market in chemicals. This was based on the discovery of new dyestuffs plus the development of both the contact process for sulphuric acid and the Haber process for ammonia. The later required a major technological breakthrough that of being able to carry out chemical reactions under conditions of very high pressure for the first time. The experience gained with this was to stand Germany in good stead, particularly with the rapidly increased demand for nitrogen-based compounds (ammonium salts for fertilizers and nitric acid for explosives manufacture) with the outbreak of world warⅠin 1914. This initiated profound changes which continued during the inter-war years (1918-1939). 1．化学工业的起源 尽管化学品的使用可以追溯到古代文明时代，我们所谓的现代化学工业的发展却是非常近代（才开始的）。可以认为它起源于工业革命其间，大约在1800年，并发展成为为其它工业部门提供化学原料的产业。比如制肥皂所用的碱，棉布生产所用的漂白粉，玻璃制造业所用的硅及Na2CO3. 我们会注意到所有这些都是无机物。有机化学工业的开始是在十九世纪六十年代以William Henry Perkin 发现第一种合成染料—苯胺紫并加以开发利用为标志的。20世纪初，德国花费大量资金用于实用化学方面的重点研究，到1914年，德国的化学工业在世界化学产品市场上占有75%的份额。这要归因于新染料的发现以及硫酸的接触法生产和氨的哈伯生产工艺的发展。而后者需要较大的技术突破使得化学反应第一次可以在非常高的压力条件下进行。这方面所取得的成绩对德国很有帮助。特别是由于1914年第一次世界大仗的爆发，对以氮为基础的化合物的需求飞速增长。这种深刻的改变一直持续到战后（1918-1939）。 date bake to/from: 回溯到 dated: 过时的，陈旧的 stand sb. in good stead: 对。。。很有帮助
应用化学专业英语及答案
黄冈师范学院 2009—2010学年度第一学期期末试卷考试课程：专业英语考核类型：考试A卷 考试形式：闭卷出卷教师：杨一思 考试专业：化学考试班级：应用化学200601 一、Translate the following into English（20 points） 1.过滤 2.浓缩 3.结晶化 4.吸附 5. 蒸馏6．超临界的 7.二氯甲烷 8.热力学平衡 9.亲电性 10.表面张力 11.共轭的 12.酮 13.平衡常数 14.丙基 15.丁基 16.亚甲基 18.环己酮 19.同位素 20.标准熵 二、Translate the following into Chinese（20 points） 1. methyl propanoate 2. rate constant 3. ethyl methyl ketone 4. free energy 5. radical intermediate 6. isobutyl methyl ether 7. 3-chloropropene 8. primary radical 9. n-propyl bromide 10. bond energy 11. circulating electrons 12. local magnetic fields 13. tetramethylsilane 14. mass to charge ratios 15 phenylamine 16 amide 17. amine 18. nucleophile 19. perchlorate 20. carbocation 三、Translation the following into chinese （40 points） A卷【第1页共 3 页】
翻译常用词汇
翻译常用词汇 高枕无忧resting without worries 史无前例unprecedented in the history 不可一世a conquering hero 毫不示弱equally firmly 量体裁衣to act according to actual circumstances 一刀两断to cut it clean 与虎谋皮to ask a tiger for its skin 六亲不认to disown all one’s relatives and fri ends 英雄本色the true quality of a hero 英雄所见略同Great minds think alike. 每逢佳节倍思亲On festive occasions more than ever we think of our dear ones faraway. 上有好，下必有其焉。What the superior loves, his inferiors will be found to love exceedingly.大江东去，浪淘尽，千古风流人物。The Great River flows to the east: Its waves have washed away all the men of untrammeled spirit of a thousand ages. 上兵伐谋，其次伐交。What is supremely important in war is to attack the enemy’s strategy. Next best is to disrupt his alliances. 问君能有几多愁，恰似一江春水向东流。I wonder how many sorrows you have. They are exactly like the Yangtze River unceasingly flowing eastward in spring. 千呼万唤始出来，犹抱琵琶半遮面。Only after a thousand entreaties does she appear. Her face half hidden behind the guitar (pipa) in her arms. 吃得苦中苦，方为人上人。Only if you can stand the hardest of hardships can you hope to rise in society. 是非经过不知难You never know how hard a task is almost until you have done it yourself. 满招损Pride goes before a fall. / Pride spells failure. 适可而止Bind the sack before it be full. 好汉做事好汉当A true man has the courage to accept the consequences of his own actions.知己知彼，百战不殆。To know one’s and the enemy’s situation ensures victory. 牵扯之覆，后车之鉴。The overturned car ahead is a warning to the ones behind. 山雨欲来风满楼The wind sweeping through the tower heralds a rising storm in the mountains. 是故学然后知不足，教然后之困。Therefore, to learn makes us realize our deficiency, and to teach makes us know the difficulties. 人尽其才、地尽其利、物尽其利、货畅其流。Our human, land and material resources should be used to the best advantage, and our goods should be in good circulation. 父母有抚养教育未成年子女的义务，成年子女有赡养扶助父母的义务。Parents have the duty to rear and education their children who are minors, and children who have come of age have the duty to support and assist their parents. 中华人民共和国公民有劳动的权利和义务。Citizens of the P eople’s Republic of China have the right as well as the duty of work. 各民族公民都有用本民族语言文字进行诉讼的权利。Citizens of all nationalities have the right to use the spoken and written languages of their own nationalities in court proceedings.
化工专业英语lesson4翻译资料
仅供参考 Introduction to Organic Chemistry 1. Sources of Organic Compounds The major sources of organic chemicals are coal, petroleum, and agricultural products. Both coal and petroleum were formed through the geologic processes of changing animal and plant remains into carbon-containing residues. About one-third of all organic chemicals are derived from coal and about one-half from the petroleum industry 有机化合物的来源 有机化学药品的主要来源是煤、石油和农产品。动植物的遗体通过地质作用变成含碳残基然后形成煤和石油。三分之一的所有有机化合物品是从煤中得到的，一般来自于石油工业。 2. The Methods and Objectives of Organic Chemistry Because of the tremendous number of organic compounds known, and of the many more being synthesized daily, the study of organic chemistry is not the study of individual compounds, it is the study of groups or families of compounds all closely related to each other. Obviously, the former approach would be prohibitive[prE5hibitiv]. Once the structural relationships of certain typical members of a particular group or family of compounds are understood, these structural features are understood for any one of the many members of the family, even though some may not be known compounds. 因为已知的有机化合物的数目庞大，而且还在逐日合成更多的品种，所以有机化学不是研究单个的化合物，而是把彼此密切相关的化合物按类或族来研究。显然，以前的方法是不可取的，一旦典型的一类特殊化合物被认识，这些结构特征将适用于这类化合物，甚至是一些未知的化合物， For each group or family of compounds often called homologous series of compounds, structural features are important. In studying organic chemistry, it is not enough to know the identities of the elements and how many atoms of each element are present in a given molecule. More importantly, the order in which these atoms are linked together to form
应用化学专业英语翻译(第二版)
Unit10 Nomenclature of Hydrocarbons碳氢化合物的命名 Alkanes烷烃 理想的，每一种化合物都应该由一个明确描述它的结构的名称，并且通过这一名称能够画出它的结构式。为了这一目的，全世界的化学家接受了世界纯粹与应用化学会（IUPAC）建立的一系列规则。这个系统就是IUPAC系统，或称为日内瓦系统，因为IUPAC的第一次会议是在瑞士日内瓦召开的。不含支链的烷烃的IUPAC命名包括两部分（1）表明链中碳原子数目的前缀；（2）后缀－ane，表明化合物是烷烃。用于表示1至20个碳原子的前缀见表 表中前4个前缀是由IUPAC选择的，因为它们早已在有机化学中确定了。实际上，它们甚至早在它们成为规则之下的结构理论的暗示之前，它们的地位就确定了。例如，在丁酸中出现的前缀but－，一种表示在白脱脂中存在的四个碳原子的化合物（拉丁语butyrum白脱（黄油））。表示5个或更多碳原子的词根来源于希腊或拉丁词根。 含取代基的烷烃的IUPAC名称由母体名称和取代基名称组成，母体名称代表化合物的最长碳链，取代基名称代表连接在主链上的基团。 来源于烷烃的取代基称为烷基。字母R－被广泛用来表示烷烃的存在.烷烃的命名是去掉原烷基名称中的－ane加上后缀－yl。例如，烷基CH3CH2－称为乙基。 CH3－CH3乙烷（原碳氢化合物）CH3CH2－乙基（一个烷基） 下面是IUPAC的烷烃命名规则： 1. 饱和碳氢化合物称为烷烃。 2. 对有支链的碳氢化合物，最长的碳链作为主链，IUPAC命名按此主链命名。 3. 连接在主链上的基团称为取代基。每一取代基有一名称和一数字.这一数字表示取代基连接在主链上的碳原子的位置。 4. 如果有多于一个的相同取代基，要给出表示支链位置的每个数字。而且，表示支链数目的数字由前缀di－，tri－，tetra－，penta－等表示。 5. 如果有一个取代基，主链碳原子编号从靠近支链的一端开始，使支链位号最小。如果有两个或多个取代基，支链从能使第一个取代基位次较小的一侧编号。 6. 如果有两个或多个取代基，它们按字母顺序排列。当排列取代基时，前缀iso－（异）和neo－（新）也按字母排列，前缀sec－（仲）和tert－（特）在字母排列中忽略 此外，按字母排列取代基时，表示倍数的前缀2，3，4等也被忽略。 Alkenes烯烃 烷烃的碳原子间只有单键。烯烃在两个碳原子间有双键（两个键）。考虑到两个碳原子间以双键相连。因为双键用去了两个碳原子的共4个电子。所以只剩下4个电子以供成
2019英语四级翻译常用词汇：教育词汇
2019英语四级翻译常用词汇：教育词汇 成人夜校 night school for adults 在职进修班 on-job training courses 政治思想教育 political and ideological education 毕业生分酉己 graduate placement; assignment of graduate 充电update one’s knowledge 初等教育 elementary education 大学城 college town 大学社区 college community 高等教育 higher education 高等教育“211 工程” the “211 Project” for higher education 高等学府 institution of higher education 综合性大学 comprehensive university 文科院校 colleges of (liberal) arts 理工科大学 college / university of science and engineering 师范学院teachers’ college; normal college 高分低能 high scores and low abilities 高考(university/college) entrance examination 高校扩招 the college expansion plan
教育界 education circle 教育投入 input in education 九年义务教育 nine-year compulsory education 考研 take the entrance exams for postgraduate schools 课外活动 extracurricular activities 必修课 required/compulsory course 选修课 elective/optional course 基础课 basic courses 专业课 specialized courses 课程表 school schedule 教学大纲 teaching program; syllabus 学习年限 period of schooling 学历 record of formal schooling 学分 credit 启发式教学 heuristic teaching 人才交流 talent exchange 人才战 competition for talented people 商务英语证书 Business English Certificate (BEC) 适龄儿重入学率 enrollment rate for children of school age 升学率 proportion of students entering schools of a higher grade; enrollment rate