飞机水平行飞了一会儿，然后开始倾斜并转弯。
The plane flew on the level for a while, but then it began banking and turning.
增加倾斜度直到物体开始下滑,然后记住开始下滑时的角度值,通过公式就能求出,静摩擦系数μ静。
We will do that later until it starts to slip and then at that critical angle that it starts to slip you have a value for mu of s for the static friction coefficient.
小孩子开始倾斜，然后又站稳了。
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