use a ratchet to do sth
此处的 ratchet 指棘轮扳手,是可数名词。
He used a ratchet to remove the bolts.
他用棘轮扳手卸下了螺栓。
棘轮机构
ratchets — plural of ratchet
棘轮扳手;棘爪;棘轮效应;棘轮噪响器;密钥棘轮
a mechanical device that allows motion in only one direction, consisting of a toothed wheel or rack and a pawl
用于卡住或推动棘轮的棘爪、卡爪或止动装置。
A pawl, click, or detent for holding or propelling a ratchet wheel, or ratch, etc.
由棘轮或齿条与棘爪组成的机械装置,仅允许单向运动
mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
由棘轮和棘爪组成的机构。
A mechanism composed of a ratchet wheel, or ratch and pawl.
棘轮扳手。
A ratchet wrench.
单向(通常为上升)的程序或规定。
A procedure or regulation that goes in one direction, usually up.
通过在序列中前进为每条消息生成新唯一密钥的机制。
A mechanism for generating a new unique key for each message by moving forward in a sequence.
一种发声器或乐器,通过板敲击旋转齿轮发声。
A noisemaker or musical instrument where sound is generated by a board striking against a rotating gear.
The mechanic used a ratchet to tighten the bolts on the engine.
技工使用棘轮扳手拧紧发动机上的螺栓。
用法提示:此处 ratchet 作名词,指一种带有棘轮机构的工具,用于单向旋转。
The ratchet on the winch prevents the cable from unwinding when the handle is released.
绞车上的棘轮装置防止手柄松开时缆绳松开。
用法提示:此句中 ratchet 指棘轮机构,用于防逆转。
He heard a clicking sound from the ratchet as he turned the gear.
他转动齿轮时,听到棘轮发出咔嗒声。
用法提示:这里 ratchet 指棘轮本身,发出咔嗒声是其典型特征。
此处的 ratchet 指棘轮扳手,是可数名词。
He used a ratchet to remove the bolts.
他用棘轮扳手卸下了螺栓。
ratchet 可直接作定语修饰工具,如 ratchet wrench、ratchet screwdriver 等。
This ratchet screwdriver has interchangeable bits.
这把棘轮螺丝刀配有可更换的批头。
抽象用法中,the ratchet of... 表示只向一个方向(通常为上升)发展的进程或规定。
The ratchet of rising costs is hard to reverse.
成本不断上升的单向攀升机制很难逆转。
pawl 是正式机械用语,特指那个摆动卡爪;可代替 ratchet 的“棘爪”义,但不能指整个棘轮机构。
click 偏口语、更具体地指小型棘轮中的止动卡子;与 pawl 常可互换,但不如 pawl 正式。
detent 是通用词,指任何定位或止动装置,不仅用于棘轮;替代时需注意它不一定采用棘爪结构。
grammar · medium
易错句子I need ratchet to fix the car.
正确表达I need a ratchet to fix the car.
ratchet 是可数名词单数,前面需要加冠词 a;中文没有冠词,容易漏掉。
grammar · medium
易错句子I play tennis with a ratchet.
正确表达I play tennis with a racket.
ratchet(棘轮)和 racket(球拍)拼写相近但意思完全不同;这里表达的是球拍,应写 racket。
grammar · medium
易错句子The toolbox has two ratchet.
正确表达The toolbox has two ratchets.
ratchet 的复数形式是 ratchets,要加 -s;中文名词没有复数变化,容易漏掉词尾。
棘轮扳手
He used a ratchet wrench to loosen the bolt.
他用棘轮扳手松开了螺栓。
棘轮机构
The ratchet mechanism allows the wheel to turn in only one direction.
棘轮机构使轮子只能单向转动。
棘轮效应
The ratchet effect makes the policy hard to reverse once introduced.
棘轮效应使这项政策一旦推出就难以逆转。
棘轮绑带
Secure the cargo with ratchet straps before driving.
开车前用棘轮绑带固定货物。
棘轮
The ratchet wheel engages with the pawl to prevent backward motion.
棘轮与棘爪啮合以防反向运动。
棘轮螺丝刀
A ratchet screwdriver speeds up repetitive work.
棘轮螺丝刀可以加快重复性工作。
棘轮本身是一种齿轮,常用于机械传动装置中。
棘爪是棘轮机构的关键部件,用于卡住或推动棘轮。
棘轮扳手是扳手的一种,常与套筒配合使用。
套筒常与棘轮扳手配合使用,用于拧紧或松开螺栓。
棘轮是一种单向运动的机械装置,作为机构的一部分工作。
逐步提高;逐渐增加
The government is ratcheting up pressure on companies to reduce carbon emissions.
政府正在逐步加大对企业减少碳排放的压力。
逐步降低;逐渐减少
The central bank decided to ratchet down interest rates to stimulate the economy.
央行决定逐步降低利率以刺激经济。
棘轮效应;不可逆的上升趋势
The ratchet effect makes it difficult to cut public spending once it has been increased.
棘轮效应使得公共支出一旦增加就很难削减。
Dictionary facts from ECDICT, WIKTIONARY.