英语词汇“square set system”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	square set system
释义	square set system noun : a method of timbering a mine in which heavy timbers are framed together in rectangular sets 6 or 7 feet high and from 4 to 6 feet long so as to fill in as the ore body is removed by overhand stoping
随便看	breakdown block breakdown voltage breaker breaker breaker boy breaker card breakerman break even breakeven break-even break-even point break facet breakfall breakfast breakfast breakfast bird breakfast food breakfastless breakfast nook breakfast plate break flour break for color breakfront break ground breakhead

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