名词
中文翻译：夹具
同义词：
['jack', 'clamp', 'fixture']
例句：
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1. The engineer used a jacking block to lift the heavy machine.
工程师使用夹具来提升这台重型机器。
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2. The car was stuck in the mud, and the driver needed a jacking block to free it.
汽车陷在泥里了，司机需要用夹具来把它弄出来。
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3. The toolbox contains various jacking blocks for different types of machinery.
工具箱里有各种夹具，适用于不同类型的机械。