piston oil ring活塞油环
piston compression ring活塞压缩环
piston guard ring活塞护环
wiper piston-ring刮油活塞环
piston valve ring活塞阀填密环;变量阀环
Piston sealing ring活塞密封圈
piston and ring活塞和活塞环
piston packing ring活塞胀圈;活塞填料环;活塞环
equalizing piston packing ring平衡活塞密封圈
Develop the CAD/CAM software of the piston ring.
4、活塞环CAD/CAM软件的开发。
参考来源 - 高速响应活塞环数控车床的开发研究In the same time, the relationship of the piston ring parameter is deduced based on the characteristic of the piston ring’s geometry parameter.
同时，根据活塞环本身几何参数的特点，推导出了活塞环各个参数之间的关系。
参考来源 - 基于计算机视觉的活塞环闭口间隙测量系统研究In this paper, the properties of the piston ring sealing device are researched by theoretical and experimental methods. Establishing mathematical models of the leakage and sealing surface temperature and analyzing the result by computer simulation.
论文对涨圈型旋转密封装置的性能进行了理论和试验研究，建立了泄漏量和密封间隙温升的数学模型，并进行仿真分析。
参考来源 - 涨圈型旋转密封装置及其性能研究N（名词） a split ring, usually made of cast iron, that fits into a groove on the rim of a piston to provide a spring-loaded seal against the cylinder wall 活塞环