英语词汇“pillar-and-breast 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	pillar-and-breast system
释义	pillar-and-breast system pillar-and-breast system [′pil·ər ən ′brest ‚sis·təm] (mining engineering) A system of coal mining in which the working places are rectangular rooms usually five or ten times as long as they are broad, opened on the upper side of the gangway.
随便看	a heavy hitter a heavy purse makes a light heart a heavy scene a heavy-scene a heavy silence a heavy silence/atmosphere a heavy weight a heavy-weight a heavyweight aheb a-hec ahec ahecc aheci a heck of a a heck of a lot of a heck of a something ahecta ahed aheda ahedc a hedge between keeps friendship green ahef ahefc ahefo

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