英语词汇“long hole”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	long hole
释义	long hole long hole [′lȯŋ ‚hōl] (mining engineering) An underground borehole and blasthole exceeding 10 feet (3 meters) in depth or requiring the use of two or more lengths of drill steel or rods coupled together to attain the desired depth.
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