| 释义 |
- n.棘齿
- v.把…造成棘齿形
- 网络救护车；棘轮；棘齿城
复数：ratchets 现在分词：ratcheting 过去式：ratcheted n. notch,tooth,cog,wheel,pawl v. intensify,inflame,step up,stir up,increase 1. | （防止倒转的）棘轮，棘齿a wheel or bar with teeth along the edge and a metal piece that fits between the teeth, allowing movement in one direction only |
n. | 4. 【机械工程】棘齿;棘爪;(尤指钟表、机器的)棘轮,制轮,棘轮机构 4. 【机械工程】棘齿;棘爪;(尤指钟表、机器的)棘轮,制轮,棘轮机构 | v. | |
n. | 1. a mechanism, used especially in lifting devices and some hand tools, consisting of a metal wheel operating with a catch that permits motion in only one direction 2. either of the main parts of a ratchet device, the toothed wheel or bar, or the pawl 3. a part of a machine consisting of a wheel or bar with teeth on it. Another metal piece fits into it, allowing it to move in only one direction. | v. | 1. to force something such as prices or political rhetoric to rise or fall in level or intensity by deliberately applying pressure in successive and irreversible stages 2. to move gradually up or down by means of a ratchet, or to move something in this way 3. to increase or decrease by small amounts during a period of time, or to make something do this |
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