动词短语
中文翻译：Unknown
同义词：
['circuit board mill', 'circuit board saw', 'circuit board drilling machine']
例句：
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1. The engineer used a circuit board drill to make holes in the circuit board.
工程师使用电路板钻孔机在电路板上打孔。
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2. The technician was busy drilling holes in the circuit board for testing.
技术员忙于在电路板上钻孔以便测试。
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3. The assembly line operator used a circuit board drill to ensure proper connections on the circuit boards.
装配线操作员使用电路板钻孔机确保电路板上的连接正确无误。