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

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	tie tack tie the knot tietick tie-tie tie to tie up tie-up tievine tiewig tiff tiffany tiffany tiffany glass tiffin tifinagh tifinar tiflis tift tig l casei factor l c classification LCD lce l cell LCJ

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