静摩擦- - -路面与轮胎无相对滑动。
Static Contact — the tire and the road (or ground) are not slipping relative to each other.
轮轨的相对滑动速度越高,其热效应越明显。
推导了渐开线内齿轮副相对滑动率的计算公式。
The relative sliding ratio formulas of an involute internal spur gear pair are developed.
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