《机电工程英语》PPT课件
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机电专业英语PPT课件
他的价值观念似乎陈旧了。 • immense [i mens] adj.极大的，巨大的
例句：They made an immense improvement in English.
在E英nd语方面他们取得了巨大的进步To。pic Above Next
centrifugal [sen‘trifjugəl] adj.离心的
mass-produced大(批)量生产的
Section II Text
Processes of mechanization have been developing and becoming more complex ev er since the beginning of the Industrial Revo lution at the end of the 18th century.（自从 18世纪末工业革命开始，工业机械化进 程一直在不断地发展，并且变得越来越 复杂。） The current developments of auto matic processes are, however, different from the old ones.（但目前的工业自动化过程 较以前的工业自动化过程有很大的不同）
）
Now people often talk about “feedback” as b
eing an essential factor of the new industrial t
echniques, upon which is based an automatic
self-regulating system and by virtue of which
And in many, though not all, instances th e element of control is so great that me chanization displaces muscle, “automat ion” displaces brain as well.（尽管不 是所有的情况，但在大多数情况下， 控制元件依然发挥着强大的力量， 机械化已经代替了手工劳动，而自 动化代替了脑力劳动。
例句：They made an immense improvement in English.
在E英nd语方面他们取得了巨大的进步To。pic Above Next
centrifugal [sen‘trifjugəl] adj.离心的
mass-produced大(批)量生产的
Section II Text
Processes of mechanization have been developing and becoming more complex ev er since the beginning of the Industrial Revo lution at the end of the 18th century.（自从 18世纪末工业革命开始，工业机械化进 程一直在不断地发展，并且变得越来越 复杂。） The current developments of auto matic processes are, however, different from the old ones.（但目前的工业自动化过程 较以前的工业自动化过程有很大的不同）
）
Now people often talk about “feedback” as b
eing an essential factor of the new industrial t
echniques, upon which is based an automatic
self-regulating system and by virtue of which
And in many, though not all, instances th e element of control is so great that me chanization displaces muscle, “automat ion” displaces brain as well.（尽管不 是所有的情况，但在大多数情况下， 控制元件依然发挥着强大的力量， 机械化已经代替了手工劳动，而自 动化代替了脑力劳动。
机电专业英语课件Lesson 1
End
Topic
Above
汉
Next
Section II Text
Early in the 1950s, two important engineering discoveries changed th e image of the electronic-computer field. These discoveries were the mag netic core memory and Transistor-Circuit Element. These technical disco veries quickly found their way into new models of digital computers. In the 1960s, efforts to design and develop the fastest possible compu ter with the greatest capacity reached a turning point with the LARC mac hine. The LARC had a base memory of 98000 words and multiplied in 1 0 μs. The trend during the 1970s was, to some extent, moving away from ve ry powerful, single-purpose computers and toward a larger range of appli cations for cheaper computer systems. Most continuous-process manufac turing, such as petroleum refining and electrical-power distribution syste ms then used computers of smaller capability for controlling and regulati ng their jobs.
《机电专业英语》 教学课件课件 Unit 24 Flexible Manufacturing
A flexible manufacturing system (FMS) is a highly automated GT machine cell, consisting of a group of processing workstations (usually CNC machine tools), interconnected an automated material handling and storage system. The reason the FMS is a called flexible is that it is capable of processing a variety of different part styles simultaneously at the various workstations, and the mix of part styles and quantities of production can be adjusted in response to changing patterns demanded. The FMS is most suited for the mid-variety, midvolume production range.
1. Computer control. 2. Automated materials handling capability. 3. Tool handling capability.
Text & Translation
Flexible manufacturing was first introduced in the mid-1960s when the British firm Moils Ltd. developed its System 24. System 24 is a real FMS. However, it was doomed from the outset because automation, integration, and computer control technology had not yet been developed to the point where they could properly support the system. With the emergence of sophisticated computer control technology in the late 1970s and 1980s, flexible manufacturing became a viable concept. In the United States, manufacturers of automobiles, trucks, and tractors are the pioneers in adopting flexible manufacturing.
1. Computer control. 2. Automated materials handling capability. 3. Tool handling capability.
Text & Translation
Flexible manufacturing was first introduced in the mid-1960s when the British firm Moils Ltd. developed its System 24. System 24 is a real FMS. However, it was doomed from the outset because automation, integration, and computer control technology had not yet been developed to the point where they could properly support the system. With the emergence of sophisticated computer control technology in the late 1970s and 1980s, flexible manufacturing became a viable concept. In the United States, manufacturers of automobiles, trucks, and tractors are the pioneers in adopting flexible manufacturing.
机电专业英语教学课件Unit 3 Can You Follow These Directions
1. This symbol indicates that lethal accidents or serious injuries may occur if the operating and working instructions are not followed properly.
2. This symbol warns against dangerous voltage! Immediate death might be the consequence.
2. This symbol warns against dangerous voltage! Immediate death might be the consequence.
Part IV Task-driven Practice
【引导文1】Common Symbols & Their Indications（车间常见警示 标志及含义）
Part III Reading One
Sample hazard inspection checklist （危险检测清单样本） （1）Floors-地板 （2）aisles-过道 （3）Fire-火源 （4）General lighting-照明 （5）Windows-窗户
Part III Reading One
Part III Reading One
Make inferences 9. oxidizing agent氧化剂 10. organic peroxide有机过氧化物 11. toxic有毒物 12. radioactive放射性物质 13. miscellaneous dangerous goods 有害危险物品
5. lower
6. regularly
2. This symbol warns against dangerous voltage! Immediate death might be the consequence.
2. This symbol warns against dangerous voltage! Immediate death might be the consequence.
Part IV Task-driven Practice
【引导文1】Common Symbols & Their Indications（车间常见警示 标志及含义）
Part III Reading One
Sample hazard inspection checklist （危险检测清单样本） （1）Floors-地板 （2）aisles-过道 （3）Fire-火源 （4）General lighting-照明 （5）Windows-窗户
Part III Reading One
Part III Reading One
Make inferences 9. oxidizing agent氧化剂 10. organic peroxide有机过氧化物 11. toxic有毒物 12. radioactive放射性物质 13. miscellaneous dangerous goods 有害危险物品
5. lower
6. regularly
《机电专业英语》 教学课件课件 Unit 15 Mechatronics
Text & Translation
Mechatronics is an integrated comprehensive study of intelligent and high performance electromechanical system (mechanisms and processes)，intelligent and motion control through the use of advanced microprocessors and DSPs，power electronics and ICs，design and optimization，modeling and simulation，analysis and virtual prototyping，etc. Integrated multidisciplinary features are approaching quickly，and mechatronics，which integrates electrical， mechanical，and computer engineering areas(Fig.15.1).
New Words & Expressions
benchmark [′bentʃma:k] n. 基准，标准 entreaty [in′tri:ti] n. 恳求，请求 evolutionary [i:və′lu:ʃnəri] adj. 发展的，演化的 DSP (digital signal processing) 数字信号处理 IC (integrated circuit) 集成电路 consensus [kən′sensəs] n. 一致 augment [ɔ:g′ment] v. 增加，扩大 unify [′ju:nifai] v. 成为一体，统一 cornerstone [′kɔ:nəstəun] n. 基石，基础
机电工程英语公开课一等奖优质课大赛微课获奖课件
Lesson 13 Programmable Logic Controller
可编程逻辑控制器
•Section I Words and Phrases 词 •Section II Text 英 and Translation 汉 •Section III Exercises 练 and Answers 答
End
Topic Above Next
第3页
Section II Text
A programmable logic controller, PLC, or programmable contr-
oller is a small computer used for automation of real-world processes, such as control of machinery on factory assembly lines. The PLC usually uses a microprocessor. The program can often control complex sequencing and is often written by engineers. The program is stored in battery-backed memory1 and/or EEPROMs2.
End
Topic Above 汉 Next
第6页
Section II Text
The earliest PLCs expressed all decision making logic in simple ladder logic inspired from the electrical connection diagrams. The electricians were quite able to trace out circuit problems with schematic diagrams using ladder logic. This was chosen mainly to reduce the apprehension of the existing technicians.
可编程逻辑控制器
•Section I Words and Phrases 词 •Section II Text 英 and Translation 汉 •Section III Exercises 练 and Answers 答
End
Topic Above Next
第3页
Section II Text
A programmable logic controller, PLC, or programmable contr-
oller is a small computer used for automation of real-world processes, such as control of machinery on factory assembly lines. The PLC usually uses a microprocessor. The program can often control complex sequencing and is often written by engineers. The program is stored in battery-backed memory1 and/or EEPROMs2.
End
Topic Above 汉 Next
第6页
Section II Text
The earliest PLCs expressed all decision making logic in simple ladder logic inspired from the electrical connection diagrams. The electricians were quite able to trace out circuit problems with schematic diagrams using ladder logic. This was chosen mainly to reduce the apprehension of the existing technicians.
机电专业英语ppt
Helical gears can also be used to connect nonparallel, non-intersecting shafts at any angle to one another. Ninety degrees is the commonest angle at which such gears are used.
Chapter One Lesson One
Mechanics Components
Gears
Spur and helical gears.
A gear having tooth elements that are straight and parallel to its axis is known as a spur gear. A spur pair can be used to connect parallel shafts only. Parallel shafts, however, can also be connected by gears of another type, and a spur gear can be mated with a gear of a different type (Fig. 1-1).
The thrust problem can be overcome by cutting two sets of opposed helical teeth on the same blank. Depending on the method of manufacture, the gear may be of the continuous-tooth herringbone variety or a double-helical gear with a space between the two halves to permit the cutting tool to run out. Doublehelical gears are well suited for the efficient transmission of power at high speeds.
Chapter One Lesson One
Mechanics Components
Gears
Spur and helical gears.
A gear having tooth elements that are straight and parallel to its axis is known as a spur gear. A spur pair can be used to connect parallel shafts only. Parallel shafts, however, can also be connected by gears of another type, and a spur gear can be mated with a gear of a different type (Fig. 1-1).
The thrust problem can be overcome by cutting two sets of opposed helical teeth on the same blank. Depending on the method of manufacture, the gear may be of the continuous-tooth herringbone variety or a double-helical gear with a space between the two halves to permit the cutting tool to run out. Doublehelical gears are well suited for the efficient transmission of power at high speeds.
机电工程英语课件
driving axle & driving shaft
驱动桥处于动力传动系的末端，其基本功能是增大由传动轴 或变速器传来的转矩，并将动力合理的分配给左、右驱动轮， 另外还承受作用于路面和车架或车身之间的垂直立、纵向力 和横向力。驱动桥一般由主减速器、差速器、车轮传动装置 和驱动桥壳等组成。
2. 词性转换
汽车差速器是驱动轿的主件。它的作用就是在向两边半轴 传递动力的同时，允许两边半轴以不同的转速旋转，满足 两边车轮尽可能以纯滚动的形式作不等距行驶，减少轮胎 与地面的摩擦。
suspension
车身好比是人的上半身,轮胎好比是人的脚,悬挂系统就好比 是人的腿。
汽车悬架包括弹性元件，减振器和传力装置等三部分，这三 部分分别起缓冲，减振和力的传递作用。
Lesson 21:
Introduction to Automobile
词汇讲解 课文分析 练习答案
本课教学目标：
1. 理解汽车差速器、燃油喷射器的作用； 2. 掌握与汽车相关的专业词汇； 3. 熟悉独立主格、伴随壮语等语法现象。
Section Ⅰ： words and phases
1. 重点专业名词解析 2. 词性转换 3. 专有名词的通用含义
intermittence n 断续性，周期性 compensate v →compensation n补偿 ，补偿金 ，报酬
Did you get any compensation when you were dismissed from your job?
The job is hard but the compensation is good.
paragraph Ⅳ:
Differential in the automobile is a set of gears used on the driving axle. The two wheels on the driving axle must be interconnected in order to receive their energy from the same source, the driving shaft; at the same time they must be free to revolve at different speeds when necessary (e.g., when rounding a curve, the outer wheel travels farther and thus must revolve faster than the inner wheel in order to prevent skidding).
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一般来说，汽车是指陆地上行驶的机动式车辆， 具有四个轮子，用来搭载两至六名乘客和少量货 物。我们可以把它与卡车或公汽对比一下，卡车 的零部件更大更重，主要用来运输货物；公共汽 车(或公共马车、长途汽车)是一种大型的公共运 输工具，用来搭载大量的乘客，有时也附加地运
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2. 词性转换
ignition n →ignite vt 点燃；激起 vi 着火
lubrication n →lubricate vt 使润滑 vi 起润滑作用
cylinder n →cylindrical adj 圆柱形的
intermittent adj → intermission n 间歇，休息时间； intermittence n 断续性，周期性
transmission n 变速器，传送，传播
the transmission of diseases
manifold n 多种，管；adj 种种的
manifold duties
ቤተ መጻሕፍቲ ባይዱ
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Now please read the new words after me for 2 times.
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transmission
发动机的输出转速非常高，最大功率及最大扭矩在一定的转 速区出现。为了发挥发动机的最佳性能，就必须有一套变速 装置，来协调发动机的转速和车轮的实际行驶速度。变速器 可以在汽车行驶过程中，在发动机和车轮之间产生不同的变 速比，通过换挡可以使发动机工作在其最佳的动力性能状态 下。变速器的发展趋势是越来越复杂，自动化程度也越来越 高，自动变速器将是未来的主流。
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3. 专业名词的通用含义
differential n 差别，差速器；adj 差别的 muffler n 消声器，围巾，厚手套 tire n 轮胎；vt 使疲劳；vi 疲劳，厌烦（+of）
She never tires of talking about her hometown.
汽车差速器是驱动轿的主件。它的作用就是在向两边半轴 传递动力的同时，允许两边半轴以不同的转速旋转，满足 两边车轮尽可能以纯滚动的形式作不等距行驶，减少轮胎 与地面的摩擦。
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suspension
车身好比是人的上半身,轮胎好比是人的脚,悬挂系统就好比 是人的腿。
汽车悬架包括弹性元件，减振器和传力装置等三部分，这三 部分分别起缓冲，减振和力的传递作用。
After that, you will have 10 minutes to remember as many words as you can.
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Section Ⅱ： text
At first, read the first paragraph silently in two minutes, please.
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1. 重点专业名词解析
differential suspension transmission driving axle & driving shaft
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differential
汽车发动机的动力经离合器、变速器、传动轴，最后传送 到驱动桥再左右分配给半轴驱动车轮，在这条动力传送途 径上，驱动桥是最后一个总成，它的主要部件是减速器和 差速器。减速器的作用就是减速增矩，这个功能完全靠齿 轮与齿轮之间的啮合完成，比较容易理解。而差速器就比 较难理解，什么叫差速器，为什么要“差速”？
1. 重点专业名词解析 2. 词性转换 3. 专有名词的通用含义
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Now you will have 5 minutes to skim over the new words and phrases, marking the special words you can’t understand.
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driving axle & driving shaft
驱动桥处于动力传动系的末端，其基本功能是增大由传动轴 或变速器传来的转矩，并将动力合理的分配给左、右驱动轮， 另外还承受作用于路面和车架或车身之间的垂直立、纵向力 和横向力。驱动桥一般由主减速器、差速器、车轮传动装置 和驱动桥壳等组成。
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paragraph Ⅰ:
Automobile（Fig.6.1） is a self-propelled vehicle used for travel on land. The term is commonly applied to a four-wheeled vehicle designed to carry two to six passengers and a limited amount of cargo, as contrasted with (与...比较) a truck, which is designed primarily for the transportation of goods and is constructed with larger and heavier parts, or a bus (or omnibus or coach), which is a large public conveyance designed to carry a large number of passengers and sometimes additionally small amounts of cargo.
compensate v →compensation n补偿 ，补偿金 ，报酬
Did you get any compensation when you were dismissed from your job?
The job is hard but the compensation is good.
Lesson 21:
Introduction to Automobile
词汇讲解 课文分析 练习答案
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本课教学目标：
1. 理解汽车差速器、燃油喷射器的作用； 2. 掌握与汽车相关的专业词汇； 3. 熟悉独立主格、伴随壮语等语法现象。
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Section Ⅰ： words and phases