counter-rotate 中文意思是什麼
counter-rotate
解釋
反旋-
Use the gear to translate the input to two " arc " blade to rotate clockwise and counter - clockwise, to transit fluid from down to up side
利用齒輪使輸入成為一順一逆的方向轉動,帶動兩圓弧線型式葉片把液體由下往上輸送。 -
If the hips don ' t counter rotate and then rotate into the serve, it requires 28 % more load in the elbow to achieve the same ball velocity
如果沒有髖部的轉動,肘要多承受28 %的壓力,以達到同樣的發球速度。
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