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英语解释

ratchet

音标['rætʃit]

汉语翻译

n. 棘轮, 棘爪
【机】 棘轮, 棘齿轮

ratchet词型变化

动词过去式:ratcheted 过去分词:ratcheted 现在分词:ratcheting 第三人称单数:ratchets 

ratchet英语解释

名词 ratchet:

  1. 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:rachet, ratch

动词 ratchet:

  1. move by degrees in one direction only
    同义词:rachet up, ratchet down

ratchet详细解释

ratch.et

n.(名词)
A mechanism consisting of a pawl that engages the sloping teeth of a wheel or bar, permitting motion in one direction only.
棘轮,棘爪:一种包含合于转轮或长条倾斜性齿轮中的爪状物的机械,使轮仅向一个方向运动
The pawl, wheel, or bar of this mechanism.
棘轮,棘爪,棘条:这种机械装置中的爪状物,转轮或长条
v.tr.(及物动词)
ratch.et.ed,ratch.et.ing,ratch.ets
To increase or decrease by increments. Often used withup, upward, down, or downward :
渐进:一步步地增加或减少。通常与up,upward,downdownward 一起使用:
例句:
.Some companies . . . may make things worse if they seek to ratchet down their medical expenses by limiting benefits for psychological or psychiatric care.(Newsweek)
.有些公司企图限制精神或心理卫生上的福利来减少医疗开支,那它们只会把事情搞得更糟.(新闻周刊)

来源:
French rochet
法语 rochet
from Old French rocquet [head of a lance (from the shape of the teeth)]
源自 古法语 rocquet [长矛尖端(由齿状而来)]
[of Germanic origin]
[来源于德语]

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