1·In the automobile industry piston ring tin and cylinder walls tin can prevent sluggish death and injury.
在汽车工业上活塞环镀锡和汽缸壁镀锡可防止滞死和拉伤。
2·The Statistical analysis of piston ring tracer cutting errors shows that there is a systematic error in the tracer cutting.
对活塞环仿形车削误差的统计分析表明：靠模仿形加工中存在系统误差。
3·This kind of air compressor cylinder basically does not include any oil content in, the piston ring and packing is commonly ptfe.
这种空压机气缸中基本上不含油，其活塞环和填料一般为聚四氟乙烯。
4·This paper analyses the patterns and reasons of piston ring wear and ineffectiveness and proposes some countermeasures.
本文对活塞环磨损失效的形式及原因进行了分析，并提出预防措施。
5·The laser heat treatment process and mechanism on the surface of piston ring groove were studied.
对活塞环槽表面的激光热处理工艺与机理进行了试验研究。