单词：ratchets
音标：[ˈrætʃits] ；
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 )
v. （防倒转的）棘齿( ratchet的第三人称单数 )
n mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
v move by degrees in one direction only
v move by degrees in one direction only
ratchet的用法和样例：
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。
词汇搭配
- ratchet gearing棘轮传动装置,棘轮机...
- ratchet brace棘轮摇钻
- ratchet jack棘轮起重器
- ratchet wheel[机]棘轮
- ratchet pawl棘轮爪,棘轮掣子...
- ratchet tooth棘轮齿
- ratchet relay棘轮式继电器...
- ratchet drive棘轮驱动,棘轮传动...
- ratchet lift棘轮式起落机构...
- ratchet stop棘轮式挡料装置...
- ratchet clutch棘爪离合器
- ratchet handle棘轮手柄
- ratchet gear棘轮
- brake ratchet制动爪,制动棘轮机构...
- ratchet drill棘轮式手摇钻,棘轮扳...
- ratchet wrench棘轮扳手
- ratchet bar棘齿条
- ratchet effect棘轮
- ratchet coupling闸轮联轴节
- ratchet mechanism棘轮机构,棘轮传动装...
经典引文
The union movement has not been responsible for ratcheting up inflation.
出自：Daily Telegraph
【近义词】