没有摩擦力，皮带就不能将动力从一台机器传送到另一台机器。

In the absence of friction, belts would not be capable of conveying power from one machine to another.

youdao

没有摩擦力，皮带就不能将动力从一台机器传送到另一台机器。

In the absence of friction, belts would not be capable of conveying power from one machine to another.

youdao