ratch 详细解释

ratch

[rætʃ]

n. 棘轮, 棘齿

英英释义

名词 ratch:

mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction

同义词:ratchet, rachet

补充

ratchratch[rætʃ]n.1.(防倒转的)棘齿