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Question

汽车工业在国民经济中占有重要的地位和作用。汽车是一种机动性很强的陆上交通工具，它广泛应用于交通、工业、建筑、农林、商业、军工和社会团体等国民经济各部门，并可供私人使用，承担人员和货物的转移，以及完成其它各种特殊作业。由于汽车运输具有很多独特的优势，他在国民经济中的重要性日益增强。随着公路网的不断发展和完善，特别是高速公路的出现，汽车运输将成为一种最重要的运输方式，而且越来越收到较高的经济效益。
科技进步推动了内燃机行业的持续发展，发动机的强化指标逐渐提高，活塞及其组件所受的机械负荷与热符合也越来越高，它们的设计是否合理，将直接关系到内燃机的可靠性、寿命、排放、经济性等。我国的汽车行业正在飞速发展，汽车的动力部分也在不断改进，活塞是汽车动力不可缺少的一部分，它的工作情况会直接影响汽车的运行状态。所以，如何能使活塞的生产高效率、高质量，低成本、省时间是我们今天汽车行业的努力方向。
本文从活塞的工作环境以及结构特点，详细对其工艺规程设计进行了分析。在加工工艺过程中详细分析了零件的毛坯选择,工艺路线制订，加工余量的确定等。

Answer 1

Auto industry in the national economy occupies an important position and role. Automobile is a kind of mobility strong land vehicles, it is widely used in traffic, industrial, building, forestry, business, military, and social groups and other sectors of the national economy, and available for private use, bear the transfer of people and goods, and complete other various special operations. As the car transport has many unique advantages in the national economy, the importance of his growing. With the constant developing and perfecting network, especially highway appear, automobile transport will become one of the most important mode of transportation, and more and more received higher economic benefits.

Science and technology progress promoted the sustainable development of internal combustion engine industry, engine strengthening gradually enhance, piston and index component were mechanical load and heat meet more and more is also high, their design is reasonable, will directly related to the internal combustion engine reliability, long life, a discharge, economy etc. China's auto industry is developing rapidly, automobile drive part in improving continuously, the piston is an indispensable part of car power, it will directly influence the working condition of car operation. So, how can the piston production high efficiency, high quality, low cost, time saving is our automobile industry direction today.

This article from the piston working environment and structure characteristics of its procedure, detailed design was analyzed. In the machining process detailed analysis of the components of the blank process route choice, formulation, the determination of machining allowance.

参考资料：有道翻译

Answer 2

Auto industry in the national economy occupies an important position and role. Automobile is a kind of mobility strong land vehicles, it is widely used in traffic, industrial, building, forestry, business, military, and social groups and other sectors of the national economy, and available for private use, bear the transfer of people and goods, and complete other various special operations. As the car transport has many unique advantages in the national economy, the importance of his growing. With the constant developing and perfecting network, especially highway appear, automobile transport will become one of the most important mode of transportation, and more and more received higher economic benefits. Science and technology progress promoted the sustainable development of internal combustion engine industry, engine strengthening gradually enhance, piston and index component were mechanical load and heat meet more and more is also high, their design is reasonable, will directly related to the internal combustion engine reliability, long life, a discharge, economy etc. China's auto industry is developing rapidly, automobile drive part in improving continuously, the piston is an indispensable part of car power, it will directly influence the working condition of car operation. So, how can the piston production high efficiency, high quality, low cost, time saving is our automobile industry direction today. This article from the piston working environment and structure characteristics of its procedure, detailed design was analyzed. In the machining process detailed analysis of the components of the blank process route choice, formulation, the determination of machining allowance.
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