英语词汇“bench blasting”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	bench blasting
释义	bench blasting bench blasting [′bench ′blas·tiŋ] (mining engineering) A mining system used either underground or in surface pits whereby a thick ore or waste zone is removed by blasting a series of successive horizontal layers called benches.
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