...,必需先遇到三次或三次以上的台边,然后在遇到第二颗球或先让母球撞击三次以上靠身,再遇到另两颗球即患上一点儿) stop shot 定杆 straiht billiards or straight rail 直轨撞球、法度桌球(用三个球(1红球、2白球)在无落球袋的球台上玩的撞球游戏要领是用主球连...
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推导了该车铣复合加工中心的定杆长并联机构3-PRS的位置逆解、位置正解和被动关节求解算法；
This paper solves the positive position solution , the inverse position solution and the passive joints solution of the fixed length 3-PRS parallel mechanism of the machine tool;
水位达到一定高度时，水将推动一个控制杆，从而显示时间。
When the water reaches a certain level, it moves a lever and this shows the hours.
再次，如运动学模型中的杆件的弹性变形也是存在的，忽略了这些杆系的变形也会有一定的误差。
Once again, such as the kinematic model of the pole pieces of the elastic deformation also exists, and ignores the deformation of the truss will also have some error.
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