机械类专业英语论文2
机械类专业英语论文2
2012级专升本1班姓名:xxx 学号:201215310145
Machinery industry status
Based on my understanding of mechanical industry.
Machinery industry is manufacturing and all walks of life to provide mechanical equipment and electrical equipment department, known as "the equipment department of national economy". It also provides large jobs. "". In the industry, large and medium-sized state-owned enterprises, because there was no production according to market economic organization, resulting in the production line with the market, at the same time, these old enterprises heavy historical burden. Overstaffed, economic benefit is not good. In recent years, the machinery industry in the eyes of people greatly. However, due to the importance of mechanical industry and large scale, mechanical most graduates are "hot" talent in the talent market. It is predicted, mechanical talents in the future
will continue to have a larger demand. High level talents will become the targets enterprises fight for
Machinery industry to get out of the present predicament of benefit glides, must achieve three changes: one is from a purely for the
national economy to provide equipment, turn is "equipment" is the mass consumer goods and services; two is from the past to the production technology as the center gradually to meet the market, to market oriented center; three is composed of pure industrial service to expand
to the rural market. To implement these three change, must be adjusted and the development of human resource structure, to adapt to the requirements of.
Machinery industry personnel structure at present are two small, middle, is the product of the development of staff and sales personnel, and the intermediate production personnel proportion is too large. Sales personnel are not allowed to market model, the developer can not develop marketable products, Production of surplus is bound to lead to product backlog. Therefore, must let the production team swelling middle large, increasing development and sales team. Machinery industry at present most lack talent: one is the talents, which not only know the technology and
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2012级专升本1班姓名:xxx 学号:201215310145
management, according to the rules of market economy to organize production, senior personnel to grasp the direction of the enterprise; two is the senior technical talents with innovative consciousness; three is to know the technology and marketing, understand the market situation. And improvement, product design and development talent; four are senior technicians.
Machinery industry graduates overall demand is bigger, but a considerable part of the engineering and technical personnel gap. The lack of the NC machine tools of professional and technical personnel. Many enterprises machinery industry had been conducted and
transformation technology update of modern production technology of CIMS system, NC machine tools industrial forest center and other advanced equipment to replace the original production equipment technical workers, the original production line has been unable to meet the digital equipment operation and maintenance requirements, senior technical personnel in urgent need of NC technology application. The introduction of advanced CNC machine tools from a foreign country, but not many
people can operate. While the mechanical specialty of domestic high school are taught "gear", this also shows that the mechanical professional content is old, can't keep up with the times, to be updated. The mechanical design and manufacturing and processing of professional talent supply and demand in recent years was also very high. Casting, heat processing because the condition is relatively difficult, has
always been the students enter oneself for an examination and employment upset. Some cars, pliers, milling, electricity and other post skilled workers in many enterprises do not get added, hardship posts have hired many farmers contract workers
From the development of mechanical industry, printing machinery, CNC machine tools, power generation equipment, engineering machinery and other products from the outlook remains bullish. In addition to these traditional industries, the industry will be further developed to machine photoelectrocatalysis, extended to the optical processing, environmental protection this emerging field. Although the machinery industry ailing, but after the reform of state-owned enterprises,
through the configuration optimization and adjustment of industrial structure and human resources,
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2012级专升本1班姓名:xxx 学号:201215310145
once to keep up with the market economy and the pace of the information age, will show a strong vitality, the economic benefit will rebound
The above is my understanding of the machinery industry. I am also studying mechanics, I love this profession, hope I will have a good development in this industry.
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Building construction concrete crack of prevention and processing Abstract The crack problem of concrete is a widespread existence but again difficult in solve of engineering actual problem, this text carried on a study analysis to a little bit familiar crack problem in the concrete engineering, and aim at concrete the circumstance put forward some prevention, processing measure. Keyword: Concrete crack prevention processing Foreword Concrete's ising 1 kind is anticipate by the freestone bone, cement, water and other mixture but formation of the in addition material of quality brittleness not and all material.Because the concrete construction transform with oneself, control etc. a series problem, harden model of in the concrete existence numerous tiny hole, spirit cave and tiny crack, is exactly because these beginning start blemish of existence just make the concrete present one some not and all the characteristic of quality.The tiny crack is a kind of harmless crack and accept concrete heavy, defend Shen and
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化学专业英语结课论文 摘要;化学科学技术发展战略更加贴近社会和经济需求, 生态环境恶化严重干扰可持续发展。化学科学技术活动总目标是:提供安全的能量、化学品和制造品, 既不会不可逆转地消耗地球上的稀有原料, 也不会产生有害物质污染地球;发现和创新新物质, 研究物质的化学和物理转化, 检测鉴定各种尺度物质的结构和性质;理论化学、计算化学和过程系统工程的创新应用, 及其与生物学、医药、电子学、信息学协同并在材料、医药、能源、信息、环境以及国家安全领域激励人心的应用。科学研究和人才培养都充满学科交叉。 关键词:化学科学技术;人与自然协调;可持续发展;创新 Chemical Science and Technology and Sustainable Development Abstract:Development strategy of chemical science and technology depends more and more on the demand of society and economic development nowadays, while the environment deterioration seriously interferes the sustainable development.So the chief objectives of chemical science and technology are:to provide safe energy, chemicals and products;not to consume the rare materials on earth irreversibly;not to produce harmful wastes to pollute the environment;to discover and innovate new compounds;to make research on the chemical and physical transformation of substances;to detect and determine the structures and the properties of materials of various sizes;and to make the innovative application of theoretical chemistry, computer chemistry and processing systematic engineering and their synergies with biology, pharmaceutics, electronic sand informatics for the application in the fields of materials, pharmaceutics, energy resources, information, environment and national security .Subject intersection always penetrates in scientific research and talent cultivation. Key words:chemical science and technology;harmony of human and nature;sustainable development; discover and innovate[1]
机械类英语论文及翻译翻译
High-speed milling High-speed machining is an advanced manufacturing technology, different from the traditional processing methods. The spindle speed, cutting feed rate, cutting a small amount of units within the time of removal of material has increased three to six times. With high efficiency, high precision and high quality surface as the basic characteristics of the automobile industry, aerospace, mold manufacturing and instrumentation industry, such as access to a wide range of applications, has made significant economic benefits, is the contemporary importance of advanced manufacturing technology. For a long time, people die on the processing has been using a grinding or milling EDM (EDM) processing, grinding, polishing methods. Although the high hardness of the EDM machine parts, but the lower the productivity of its application is limited. With the development of high-speed processing technology, used to replace high-speed cutting, grinding and polishing process to die processing has become possible. To shorten the processing cycle, processing and reliable quality assurance, lower processing costs. 1 One of the advantages of high-speed machining High-speed machining as a die-efficient manufacturing, high-quality, low power consumption in an advanced manufacturing technology. In conventional machining in a series of problems has plagued by high-speed machining of the application have been resolved. 1.1 Increase productivity High-speed cutting of the spindle speed, feed rate compared withtraditional machining, in the nature of the leap, the metal removal rate increased 30 percent to 40 percent, cutting force reduced by 30 percent, the cutting tool life increased by 70% . Hardened parts can be processed, a fixture in many parts to be completed rough, semi-finishing and fine, and all other processes, the complex can reach parts of the surface quality requirements, thus increasing the processing productivity and competitiveness of products in the market. 1.2 Improve processing accuracy and surface quality High-speed machines generally have high rigidity and precision, and other characteristics, processing, cutting the depth of small, fast and feed, cutting force low, the workpiece to reduce heat distortion, and high precision machining, surface roughness small. Milling will be no high-speed processing and milling marks the surface so that the parts greatly enhance the quality of the surface. Processing Aluminum when up Ra0.40.6um, pieces of steel processing at up to Ra0.2 ~ 0.4um.
专业英语作文 化学
Degradable Plastic Bags The plastic material, is a high molecular weight organic matter as main component. Over the past few years plastics inspire countless innovations that help make life better, healthier and safer every day. For example, plastic bags help keep the foods we eat and serve our families safer and fresher than ever before. But it cause the white pollution. So June 1, 2008 started the implementation of the "plastic limit order" .To protect our environment, we should use more environmental plastic bags. The production of plastic bags added in the process of degradation masterbatch plastic bags that degradable plastic bags, degradable plastic bags for 90 days can automatically decompose in accord with certain conditions. To the plastic film bag as raw material for the production of plastic bags, we used plastic bags: the bag bag, shopping bags, handbags, handbags, bags, vest belt and industrial. Some domestic "manufacturers of degradable plastic" method is mainly used in PVC, by adding a certain proportion of starch biodegradable agents, thus changing the hydrocarbon structure of PVC, by microorganisms and decomposition. Another approach is the incorporation of photosensitizer, in plastics, in the sunshine