Read Edit View history 回采 huícǎi to extract ore Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 回采/ 回採 huícǎi to extract ore to extract ore or coal by stoping, a method of excavating using stepped terraces; specifically to mine backward from the end of a tunnel toward the entrance to ensure safety Edit Delete References Add reference No references for this word.
回采/ 回採 huícǎi to extract ore to extract ore or coal by stoping, a method of excavating using stepped terraces; specifically to mine backward from the end of a tunnel toward the entrance to ensure safety Edit Delete