英语词汇“long-pillar work”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	long-pillar work
释义	long-pillar work long-pillar work [′lȯŋ ¦pil·ər ‚wərk] (mining engineering) A coal-winning technique used in underground mining in which large pillars of coal are left as the face is advanced; finally all the pillars are removed together.
随便看	ughp ughs ugh syndrome ughv ugi ugiaa ugib ugic ugie ugieta ugif ugifletzet ugih ugiip ugim ugine ugine sejournet process ugip ugir ugis ugiss ugiw ugj ugk ugkk

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