By analysis of the whole process of mechanism motion general equation of the dynamics, the change law of the acceleration and impulsive force of the punch pin isg iven out.是什么意思_By analysis of the whole process of mechanism motion general equation of the dynamics, the change law of the acceleration and impulsive force of the punch pin isg iven out.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句