ratchet
美音:[´rætʃət
]
英音:[´rætʃət
]
(防倒转的)棘齿
难易程度:
ratchet为短语/超纲词汇
词形变化:
动词过去式:ratcheted 过去分词:ratcheted 现在分词:ratcheting 第三人称单数:ratchets
ratchet
/'rætʃɪt; `rætʃɪt/
n
1 device consisting of a toothed wheel or bar with a catch that fits between the teeth allowing movement in one direction only 棘轮机构.
2 (also `ratchet-wheel) wheel that forms part of this device 棘轮. =>illus 见插图.
n
1 device consisting of a toothed wheel or bar with a catch that fits between the teeth allowing movement in one direction only 棘轮机构.
2 (also `ratchet-wheel) wheel that forms part of this device 棘轮. =>illus 见插图.
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