剥采比 bōcǎibǐ stripping ratio Definitions Defs Origin Strokes Stroke Words Sentences Sents 剥采比 剝採比 bōcǎibǐ stripping ratio the ratio of waste material to ore in mining; stripping-to-ore ratio
剥采比 剝採比 bōcǎibǐ stripping ratio the ratio of waste material to ore in mining; stripping-to-ore ratio
