Not surprising. You have no safety mat or adhesive stickers to allow for purchase on surface with a low coefficient of static friction.
你既没有防滑护垫也没有不干胶贴纸导致浴缸表层静摩擦系数低，因此摔倒也不足为奇。
It can provide plenteous data, and provide reference for design of cushioning package with maximum acceleration, static stress and cushion coefficient.
该方法能够提供充足的数据，并为缓冲包装设计提供最大加速度、静应力和缓冲系数的参考。
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.
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。
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