跳跃动作是花样滑冰自由滑动作技术的核心。
The action of jumping up is seen as the technical core of free skating of figure skating.
零摩擦系数意味着没有剪力发生，且接触面自由滑动。
A zero friction coefficient means that no shear forces will develop and the contact surfaces are free to slide.
前沿索赔5 ，其中多数成员加强自由滑动通过刚性块。
The leading edge of claim 5, wherein the plurality of reinforcing members slide freely through the rigid block.
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