... sliding fit 滑配合 sliding friction time 滑摩时间 sliding gear drive 滑动齿轮传动 ...
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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。
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