piston engine

短语

[机] 活塞发动机

词形变化

piston engines 复数 piston engines

释义与例句

n.
  1. 1.

    Any of several types of engine having cylinders containing reciprocating pistons, in which a crankshaft is turned by pistons moving up and down within cylinders; many internal combustion engines and many steam engines have such a mechanism.

    活塞发动机

    往复式发动机