字典網>> 英漢字典>> P開頭詞條>>piston ring的意思 漢英字典piston ring中文翻譯：【化】 活塞環; 漲圈英文解釋：名詞 piston ring:seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall字典網相關詞條：piston attenuator piston ring compressor piston displacement piston boss piston shaft piston valve piston engine piston pulse piston shaft bearing piston rod thrust