回采 huícǎi to extract ore Definitions Defs Origin Strokes Stroke Words Sentences Sents 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 Frequency Written text 0.330 per million Sources Frequency data BCC Corpus (BLCU)
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 Frequency Written text 0.330 per million Sources Frequency data BCC Corpus (BLCU)
