这就是机器零件在使用中磨损的原因。
“没有什么是永远存在的！”然而，在这个陈述中，我们想到的是人工制造的技术性物体和产品，它们在使用过程中受到自然磨损。
"Nothing lives for ever!" However, in this statement we think of artificially produced, technical objects, products which are subjected to natural wear and tear during use.
那就是机器零件在使用过程中磨损的原因。
在长期使用过程中，动力传输系统零件的磨损可导致链条张力的降低。
In the long-term use process, the attrition of dynamic transfer system components may cause the chain tension's reduction.
汽车离合器在实际使用过程中，希望能预测出一定条件下工作的零件的磨损值，以便于控制零件的磨损和制订合理的维修期限。
It is expected that the wear value of automotive clutch part used in certain condition can be predicted to control the part wear and determine the reasonable maintenance and repair time.
研究背景：为了减少磨损产物，在全髋置换和后来的全椎间盘置换术中，使用金属-金属联合的假体。
In total hip endoprosthetics and consequently for TDA , metal-on-metal combinations are used with the aim of reducing wear debris.
所研制的复合材料经实验室试验及实际运行，在磨损工况中的使用寿命成倍高于常用高铬铸铁。
Practical conditions show that the serving life of new type composites is times than that of common high chromium cast iron.
分析了有机硅室温胶装置中搅拌釜底部滑动轴承在使用中易于磨损，更换频繁的原因。
Writer analysizes the problems of easy wearing and exchanging frequently the sliding bearing which was used in a stirring reactor for RTV silicone rubber unit.
软木地板的保养比其他木地板更简便，在使用过程中，最好避免将砂粒带入室内，有个别砂粒带入，也不会磨损地板。
Cork floor maintain handier than other wood floor, in the use of the process, it is best to avoid the sand into the interior, there are individual arenaceous bead, also can not wear the floor.
产品在使用过程中，电镀色自然磨损属正常现象，出现电镀色正常使用磨损，表面划伤及人为损坏的不予退换。
It is normal that the electroplated color fades after use. Products of electroplate abrasion and scratch caused artificially can not be returned or exchanged.
在评测中没有任何因为缝隙而发出的响声，而且通过频繁的使用，也没有发现任何磨损的迹象。
We heard no creaks or other disturbing sounds for the time of our review and we also didn't notice any signs of wear and tear although we used it rather heavily.
水冷导轨在使用过程中是有磨损的，一般水冷导轨的壁厚是2mm。
There will be attrition during the process of using water-cooled guide, generally the wall thickness of the water-cooled guide is 2mm.
经实验室及实际运行表明，所研制的复合材料在磨损工况中的使用寿命明显高于常用高铬铸铁。
The lab test and running in practical working condition showed that the working life of the developed composit…
经实验室及实际运行表明，所研制的复合材料在磨损工况中的使用寿命明显高于常用高铬铸铁。
The lab test and running in practical working condition showed that the working life of the developed composit…
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