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汽车上各种零部件都有其相应的使用年限,工程师们在设计之初便根据各部件之间的关系及工作条件,估算了各部件的使用寿命。一般依各零件的特性进行初步规划,规划时考虑的条件包括使用频繁性。如车型更换较慢的德国车选用成本较高的零件,车型淘汰很快的美国车追求大量生产和低成
Various parts of the car have their corresponding useful life, engineers at the beginning of the design will be based on the relationship between the various components and working conditions, estimated the life of the various components. Generally according to the characteristics of each part of the preliminary planning, planning considerations include the use of frequent. Such as the car to replace the slower part of the German car with higher cost parts, cars quickly eliminated American pursuit of mass production and low