snifting valve

短语

词形变化

snifting valves 复数 snifting valves

释义与例句

n.
  1. 1.

    A small valve opening into the atmosphere from the cylinder or condenser of a steam engine, to allow the escape of air when the piston makes a stroke.

    交通

词源

From the noise of its action.

来源：wiktionary