ball spinning meaning in Chinese

钢球旋压
滚珠旋压

What ' s so great about a ball spinning forward
关于一个快速向前旋转的球,有什麽那麽伟大吗？
Analysis of ball spinning formability of thin - walled tubular parts of aluminum alloy
铝合金薄壁筒滚珠旋压成形分析
To make a tennis ball spin forward , the racquet must be moving from low to high at contact
为了要使网球球旋转向前，网拍一定要在接触点从低到高移动。
The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional fe simulation of ball spinning of inner grooved tubes
摘要内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。
Successfully simulated and replayed the complicated ball spinning of inner grooved tubes through the establishment of simplified sixth rotational symmetrical fe model and the adapting of local remeshing techniques
通过建立简化的六分之一旋转对称模型和采用网格局部重划分技术，成功地模拟和再现内螺纹管滚珠旋压成形过程。