名词
中文翻译：刚玉钻头
同义词：
['corundum drill bit例句：1. The engineer used a corundum bit to cut through the concrete.（工程师用刚玉钻头切穿了混凝土。）']
例句：
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1. The engineer used a corundum bit to cut through the concrete.
工程师用刚玉钻头切穿了混凝土。
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2.The tool is made from high-quality corundum, which makes it durable and precise.
该工具由高质量的刚玉制成，使其耐用且精确。
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3.The corundum bit was the key to success in this project.
这个项目中的关键工具是刚玉钻头。