英语词汇“main haulage”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	main haulage
释义	main haulage main haulage [′mān ′hȯl·ij] (mining engineering) The section of the haulage system which moves the coal from the secondary or intermediate haulage system to the shaft or mine opening.
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