英语词汇“diamond drill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	diamond drill
释义	WordReference Random House Unabridged Dictionary of American English © 2024 dia′mond drill′, Mechanical Engineering, Rocksa drill having a hollow, cylindrical bit set with diamonds, used for obtaining cores of rock samples. 1820–30
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