引进运动学中的点速度合成定理，求解单颗金刚石磨粒切削面积。
The composition of velocity law of the points in kinematics is led into the solving of the cutting area of single diamond grit.
引进运动学中的点速度合成定理，求解单颗金刚石磨粒切削面积。
The composition of velocity law of the points in kinematics is led into the solving of the cutting area of single diamond grit.
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