Correct
回采
/ huícǎi /
Strokes
Definition
stoping (excavating ore using stepped terraces)/to extract ore/extraction/to pull back
Example
As a Noun
backstoping; stoping; extraction
1
Kuàisù
快速
huí
回
cǎi
采
fast extraction
2
Huí
回
cǎi
采
sǔnshī
损失
mining loss
3
Huícǎilǜ
回采率
percentage of recovery; recovery
4
Huícǎi
回采
gōngzuòmiàn
工作面
stope