强调了齿面硬度、面粗糙度、滑情况、用前磨合情况等对齿轮接触强度的影响。

It also expounds influences of hardness and roughness of teeth surface, lubrication, running-in before use on touch strength of gear.

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典型情况下这会在刹车系统的前10到50次制动过程中发生并被称作碟盘和刹车片的“磨合”。

This typically happens during the first 10-50 stops of a brake system and is referred to as "burnishing" the rotor and pads.

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特别在使用前的磨合试验中，应采用正确检查方法，尽是避免不正确检查方法造成的损害。

Especially in engine running-in period before use, correct checking methods should be adopted to avoid the damage caused by incorrect ways.

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