With the aid of a spring scale (see above) the approximative coefficient of friction between a belt and a specific surface can easy be detected.

随着弹簧规模的援助(见上文)近似一条皮带和一个特定的表面之间的摩擦系数，可以很容易被发现。

youdao

With the aid of a spring scale (see above) the approximative coefficient of friction between a belt and a specific surface can easy be detected.

随着弹簧规模的援助(见上文)近似一条皮带和一个特定的表面之间的摩擦系数，可以很容易被发现。

youdao