滚动摩擦 friction of rolling
- 用滚动摩擦代替滑动摩擦,结果使摩擦大大减少。
The substitution of rolling friction for sliding friction results in a very considerable reduction in friction. - 不同形式的摩擦包括静摩擦,动摩擦和滚动摩擦。
Different types of friction include static, kinetic and rolling. - 静摩擦与滚动摩擦都是随时间变化的量,且两者的大小与多种因素有关。
Both static friction and rolling friction change with the time and had related with many factors.
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