piston ring

短语

[化] 活塞环; 涨圈

词形变化

piston rings 复数 piston rings

释义与例句

n.
  1. 1.

    A ring or seal that fits around a piston, sealing between the piston and the bore in which it slides.

词汇关系

名词

上位词 1

整体词 2