friction frictional force
The pistons are graphite-coated to reduce friction.
活塞上涂了一层石墨以减小摩擦力。
—— 柯林斯例句Oil can reduce friction.
润滑油能减小摩擦力。
—— 给力词典精选The design of the bicycle has managed to reduce the effects of wind resistance and drag.
这种自行车的设计成功地减少了风的阻力和摩擦力。
—— 柯林斯例句Frictional forces may also act when there is no relative motion.
在无相对运动的情况下,也可以有摩擦力的作用。
—— 辞典例句For traction to be effective, countertraction and friction are necessary.
要使牵引有效, 必须使用反牵引和摩擦力。
—— 辞典例句