ratchets

ratchets读音音标

[ˈrætʃits]

ratchets意思解释

n.

（防倒转的）棘齿( ratchet的名词复数 )；

v.

（防倒转的）棘齿( ratchet的第三人称单数 )；

英英释义

n.

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：rachetratch

v.

move by degrees in one direction only

\"a ratcheting lopping tool\"

同义词：rachet upratchet down

词组短语

ratchet wheel

ratchet effect

ratchet up

双语例句

用作名词(n.)A ratchet allows a heavy weight to be raised in short successive stages.棘轮可在简短连续的步骤内就把一个重物抬高。In a computer, the games are played 100 times, mimicking a ratchet with many teeth.在计算机中，这个游戏进行100次，以模拟有许多齿的棘轮。用作动词(v.)Smoking and alcohol ratchet up the damage several more notches.吸烟和喝酒加深了这种损伤。