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南京翻译公司分享机械工程英文翻译2

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南京翻译公司分享机械工程英文翻译2

摘要:作为南京地区知名机械翻译公司之一,弘腾翻译南京机械翻译公司秉承诚信、专业、规范、快捷的翻译公司理念,专注于为南京公司提供翻译和本地化服务。弘腾翻译南京机械翻译公司和翻译公司南京总部在得到国际关系学院专家支持后,南京弘腾翻译迅速在南京和全国扩展,形成了以江苏为核心,辐射北京、上海、苏州等大中城市的机械翻译公司网络。南京机械翻译公司已占据了南京地区机械翻译市场。弘腾翻译南京机械翻译公司期待与您的真诚合作!

作为南京地区知名机械翻译公司之一,弘腾翻译南京机械翻译公司秉承诚信、专业、规范、快捷的翻译公司理念,专注于为南京公司提供翻译和本地化服务。弘腾翻译南京机械翻译公司和翻译公司南京总部在得到国际关系学院专家支持后,南京弘腾翻译迅速在南京和全国扩展,形成了以江苏为核心,辐射北京、上海、苏州等大中城市的机械翻译公司网络。南京机械翻译公司已占据了南京地区机械翻译市场。弘腾翻译南京机械翻译公司期待与您的真诚合作!

Fiber-reinforced composites are used in some of the most advanced, and therefore most expensive sports equipment, such as a time-trial racing bicycle frame which consists of carbon fibers in a thermoset polymer matrix.

纤维加强型复合材料用于某些最先进也是最昂贵的运动设备,例如计时赛竞赛用自行车骨架就是用含碳纤维的热固塑料基材制成的。

Body parts of race cars and some automobiles are composites made of glass fibers (or fiberglass) in a thermoset matrix.

竞赛用汽车和某些机动车的车体部件是由含玻璃纤维(或玻璃丝)的热固塑料基材制成的。

Fibers have a very high modulus along their axis, but have a low modulus  perpendicular to their axis. Fiber composite manufacturers often rotate layers of fibers to avoid directional variations in the modulus.

纤维在沿着其轴向有很高的模量,但垂直于其轴向的模量却较低。纤维复合材料的制造者往往旋转纤维层以防模量产生方向变化。 Particle-reinforced composites

Particles used for reinforcing include  ceramics and glasses such as small  mineral particles, metal particles such as   aluminum, and amorphous materials,    including polymers and carbon black. 微粒加强型复合材料

用于加强的微粒包含了陶瓷和玻璃之类的矿物微粒,铝之类的金属微粒以及包括聚合物和碳黑的非结晶质微粒。

Particles are used to increase the modulus of the matrix, to decrease the permeability of the matrix, to decrease the  ductility of the matrix. An example of particle-reinforced composites is an automobile tire which has carbon black particles in a matrix of polyisobutylene elastomeric polymer.

微粒用于增加基材的模量、减少基材的渗透性和延展性。微粒加强型复合材料的一个例子是机动车胎,它就是在聚异丁烯人造橡胶聚合物基材中加入了碳黑微粒。

• Polymers    聚合材料

A polymer has a repeating structure,  usually based on a carbon backbone. The repeating structure results in large chainlike molecules. Polymers are useful because they are lightweight, corrosion resistant, easy to process at low  temperatures and generally  inexpensive.

聚合物具有一般是基于碳链的重复结构。这种重复结构产生链状大分子。由于重量轻、耐腐蚀、容易在较低温度下加工并且通常较便宜,聚合物是很有用的。

Some important characteristics of polymers include their size (or molecular  weight), softening and melting points, crystallinity, and structure. The  mechanical properties of polymers generally  include low strength and high toughness. Their strength is often improved using reinforced composite structures.

聚合材料具有一些重要特性,包括尺寸(或分子量)、软化及熔化点、结晶度和结构。聚合材料的机械性能一般表现为低强度和高韧性。它们的强度通常可采用加强复合结构来改善。 Important Characteristics of Polymers

Size. Single polymer molecules typically have molecular weights between 10,000 and 1,000,000g/mol—that can be more than 2,000 repeating units depending on the polymer structure!  聚合材料的重要特性

The  mechanical properties of a polymer are  significantly affected by the molecular weight, with better engineering properties at higher molecular weights.

聚合物的分子量极大地影响其机械性能,分子量越大,工程性能也越好。

Thermal  transitions. The softening  point (glass transition temperature) and the melting  point of a polymer will determine which it will be suitable for applications. These temperatures usually determine the upper limit for which a polymer can be used.

For example, many industrially important polymers have glass transition temperatures near the boiling point of water (100℃, 212℉), and they are most useful for room temperature applications. Some specially engineered polymers can withstand temperatures as high as 300℃(572℉).

例如,许多工业上的重要聚合物其玻璃状转化温度接近水的沸点(100℃, 212℉),它们被广泛用于室温下。而某些特别制造的聚合物能经受住高达300℃(572℉)的温度。

Crystallinity. Polymers can be  crystalline or amorphous, but they usually  have a combination of crystalline and amorphous structures (semi-crystalline).

Interchain interactions. The polymer chains can be free to slide past one another (thermo-plastic) or they can be connected to each other with crosslinks (thermoset or elastomer). Thermo-plastics can be reformed and recycled, while thermosets and elastomers are not reworkable.

Intrachain structure. The chemical structure of the chains also has a tremendous effect on the properties. Depending on the structure the polymer may be hydrophilic or hydrophobic (likes  or hates water), stiff or flexible, crystalline or amorphous, reactive or unreactive.