名词短语
中文翻译：反冲钻头
同义词：
['counter sinker', 'counter sinking bit例句：1. The engineer used a countersinking bit to drill through the rock.（工程师使用反冲钻头钻穿岩石。）']
例句：
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1. The engineer used a countersinking bit to drill through the rock.
工程师使用反冲钻头钻穿岩石。
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2.The countersinking bit was designed to penetrate deep into the earth's crust.
反冲钻头设计用来穿透地壳深处。
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3. The countersinking bit was essential for the successful completion of the project.
反冲钻头对于项目的成功完成至关重要。