ratchet是什么意思 - ratchet中文意思和解释

ratchet基本解释

n,[机]棘轮；棘齿,同近

The chair has a ratchet below it to adjust the height..这把椅子下面有一个棘轮来调整高度。

棘轮；棘齿英释中释na machine part consisting of a wheel or bar with teeth on it, which allows movement in only one direction

ratchet wheel,n. [机]棘轮.短语