Read Edit View history 回采 huícǎi extraction Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 回采/ 回採 huícǎi extraction the process of extracting ore or minerals from a mine, specifically through stoping or retreat mining methods 这里的煤层回采率达到了百分之九十。 Edit Delete References Add reference No references for this word.
回采/ 回採 huícǎi extraction the process of extracting ore or minerals from a mine, specifically through stoping or retreat mining methods 这里的煤层回采率达到了百分之九十。 Edit Delete