英语词汇“shaft allowance”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	shaft allowance
释义	shaft allowance shaft allowance [′shaft ə‚lau̇·əns] (mining engineering) The extra space between the excavation diameter and the finished diameter to accommodate the permanent shaft lining.
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