椭圆活塞 meaning in Chinese

elliptic piston

The optimization of the control parameter in ellipse piston turning
中凸变椭圆活塞车削控制参数优化
According to the design of the system , we have settled the non - contact measuring matter of piston of convex and variable ellipse , which has important signification for improving the performance of weapon equipment
本系统的设计解决了中凸变椭圆活塞的非接触检测的问题，对提高武器装备的性能具有重要意义。