查询词典 kinetic friction

In the real switchback, where friction prevents the car from again reaching as high a point as that from which it started, there is still a continuous change between kinetic and potential energy.

在实际的升降滑道（图19）中，虽然摩擦力使小车不能重新达到像出发点那样的高度，但是仍发生动能和势能之间的不断转换。

When has the vehicles after the caterpillar band, vehicles' kinetic energy transmits through the friction gives the caterpillar band, then drives the gear cluster, finally causes the generator electricity generation.

当有车辆经过履带时，车辆的动能通过摩擦传递给履带，然后带动齿轮组，最后使得发电机发电。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。