Ratchet (device)

Figure 1: A ratchet featuring gear (1) and pawl (2) mounted on base (3).

A ratchet is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. Though something of a misnomer, "ratchet" is also often used to refer to ratcheting socket wrenches, a common tool with a ratcheting handle.

单词	Ratchet mechanism
释义	Ratchet mechanism 原声例句 Life Noggin These so-called " ratcheting mechanisms" likely prevented the cells from reverting to their old, solitary ways. 這些所謂的「棘劇機制」可能阻止了細胞恢復到它們舊的、獨立的方式。精选英语短文 It says that Australia and Indonesia have the same carbon reduction targets they did back in 2015 - while the Paris Agreement is meant to involve a " ratchet mechanism" of progressively deeper cuts. 它表示，澳大利亚和印度尼西亚的碳减排目标与他们在 2015 年所做的相同——而《巴黎协定》旨在涉及一个逐步深入减排的“棘轮机制”。英语百科 Ratchet (device) A ratchet is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. Though something of a misnomer, "ratchet" is also often used to refer to ratcheting socket wrenches, a common tool with a ratcheting handle.
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Ratchet mechanism

Ratchet (device)