名词
中文翻译：棘轮螺母
同义词：
['ratchet', 'ratcheting nut', 'ratcheting screw', 'ratcheting bolt']
例句：
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1. The car's engine is a ratcheting nut that needs to be tightened regularly.
这辆车的引擎是一个需要定期拧紧的棘轮螺母。
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2.The engineer used a ratcheting screw to adjust the gears on the machine.
工程师使用一个棘轮螺丝来调整机器上的齿轮。
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3.The bolt was ratcheting tight, so we had to use a special tool to loosen it.
螺栓很紧，所以我们不得不用特殊的工具来松开它。