英语词汇“room mining, chamber mining”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	room mining, chamber mining
释义	room mining, chamber mining 房式采煤法; 每隔一定距离开采煤房,在煤房之间保留煤柱以支撑顶板的采煤方法。
随便看	north chan. (boca chica) North Channel north channels north charleston North Charlton North Chelmsford North Cheriton north chicago North Chili north china North China badger hair north china block North China fritillary North China occluded front north china plain North China raw fox skin North China raw goat skin North China Sea North, Christopher north circular North Circular, the northcliffe Northcliffe, Lord northcliffes Northcliffe, Viscount

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