surface of slide的意思|示意

If indeed the friction coefficient is independent of surface area, then when I tilt them they should start to slide roughly at the same Angle.

若摩擦系数真的，与接触面积没有关系，那么两者下滑时的角度，应该基本相当。

Slide the small piece of cardboard in the flat bag, so you have a surface to cut on without cutting through the other side of the bag.

把硬纸板放在袋子内部，这样它在切割的时候就会垫住一层纸，而不会让你刻穿另一面的纸。

On stage, Michael and his backup dancers could slide their shoes onto small pegs rising from the surface of the stage.

在舞台上，迈克尔和他的后补舞者可以通过在小短桩上滑动鞋子，来完成悬空于台面的动作。