英语词汇“room-and-pillar”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	room-and-pillar
释义	room-and-pillar /roohm"euhn pil"euhr, room"-/, adj. Mining. noting a means of extracting coal or other minerals from underground deposits by first cutting out rooms, then robbing the pillars between them; pillar-and-breast. Cf. longwall.
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