短語(yǔ)詞組短語(yǔ)mining g intensity 開(kāi)採(cǎi)強(qiáng)度mining intensity method 開(kāi)採(cǎi)強(qiáng)度法high intensity mining 高強(qiáng)度開(kāi)採(cǎi) 返回 mining intensity