短語詞組短語stripping g ratio 采剝比production stripping -ratio 生產(chǎn)剝采比economic stripping ratio 經(jīng)濟(jì)合理采剝比;經(jīng)濟(jì)剝采比reasonable economy stripping ratio 經(jīng)濟(jì)合理剝采比final stripping ratio 終了剝采比nomic stripping ratio 經(jīng)濟(jì)剝采比breakeven stripping ratio 也稱為盈虧平衡剝采比the economic stripping ratio 經(jīng)濟(jì)合理剝采比average stripping ratio 平均剝采比 返回 stripping ratio