关于机械 The machine
关于机械 The machine(中文6300字,英文3900字)
机械设计是一门通过设计新产品或者改进老产品来满足人类需求的应用技术科学。它涉及工程技术的各个领域，主要研究产品尺寸、形状和详细结构的基本构思，还要研究产品在制造、销售和使用等方面的问题。设计人员或者机械设计工程师是指进行各种机械设计工作的人员。机械设计是一项创造性的工作。他们不仅在工作上要有创造性，而且必须在机械制图、运动学、工程材料、材料力学和机械制造工艺学等方面具有深厚的基础知识。
机械设计的目的是生产能够满足人类需求的产品。只有当发明、发现和科技知识被应用在产品上才能产生效益给人类带来好处。因而，应该认识到在一个特定的产品进行设计之前，必须先确定人们是否需要这种产品。机械装置和其它组件组成了机器。它是一种用来转换或传递能量的装置，例如：发动机、蜗轮机、车辆、起重机、印刷机、洗衣机、照相机和摄影机等。许多原则和设计方法适用于机器和非机器的设计。术语中的“机械装置设计” 的含义要比“机械设计”的含义更为广泛一些，机械装置设计包括机械设计。在分析运动及设计结构时，要把产品外型以及以后的保养也要考虑在机械设计中。在机械工程领域中，以及其它工程领域中，所有这些都需要机械设备，比如：开关、凸轮、阀门、船舶以及搅拌机等。一台完整机器的设计是一个复杂的过程。 [资料来源：www.doc163.com]
The machine
Mechanical design is a through the design of new products or improving old products to meet the demand of human application science and technology. It involves field of engineering technology, main research product size, shape, the detailed structure basic idea, theproduct but also in the aspects of manufacture, sale and use question. Design personnel or machine design engineer is to point to in a variety of mechanical design work. Mechanical design is a creative work. They at work to not only creative and must be in mechanical drawing engineering material, materials mechanics and machine manufacture technology has the deep elementary knowledge.
Mechanical design is the purpose of manufacturing products can satisfy human needs. Only when the invention, discovery, and knowledge of science and technology has been applied on tproducts to produce benefits benefits it brings to mankind. Thus, should realize before a good particular product to carry on the design, must first determine whether people need this product. Machinery and other components of the machine. It is a device used to convert transfer energy, for example: motor, worm gear machines, vehicles, cranes, printing machine, washing machine, camera, camera and so on. Many of the principles and the design method is suitable for the machine and the machine design. Terms of the meaning of "mechanical design" rather than "mechanical design" is more widely some, mechanism design, including mechanical design. Based on the analysis of motion and the design structure, want to the products and future maintenance in mechanical design must also be considered. In the field of mechanical engineering and other engineering fields, all of which need to mechanical equipment, such as switches, CAM, valves, vessels, mixer, etc. A complete machine design is a complicated process. [来源：http://www.doc163.com]