名词
中文翻译：钻头
同义词：
['bit', 'drill', 'core bit', 'drill core', 'core drill']
例句：
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1. The engineer used a burr bit to remove the old paint from the wooden door.
工程师用一个钻头来去除旧油漆。
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2. The machine uses a burr bit to cut through hard materials.
这台机器使用一个钻头来切割硬材料。
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3. The technician needs to replace the burr bit in the cutting tool immediately.
技术人员需要立即更换切割工具中的钻头。