prolonging wear的意思|示意

The result shows that in the ring-block sliding wear test, with time prolonging, the friction coefficient of all samples becomes more and more stable, and the mass wear loss increases.

结果表明：在环-块滑动摩擦实验中，随时间延长，试样摩擦系数均趋向平稳，质量磨损量均增长。

Excellent abrasion resistance to the extreme pressure to prevent rapid wear, prolonging the life of gears.

优良的极压抗磨性防止高速下磨损产生，延长齿轮寿命。

The engine oil pump not only can prevent leaking, but also can reduce wear of the gear to parts of the casing of the engine oil pump, and prolonging the service life of the casing.

本发明不仅可以防止泄漏，而且可以减少齿轮对机油泵局部壳体的磨损，延长壳体的使用寿命。