基本解釋[能源科學(xué)技術(shù)]原鑛英漢例句雙語例句A key to ore dressing of quartz sands includes rude ores of high or low quality, occurrence and distribution of detrimental impurity such as iron and aluminium in size grades of placer deposits.石英砂原鑛質(zhì)量的優(yōu)劣,有害襍質(zhì)鉄、鋁的賦存狀態(tài)及其在各粒級砂鑛中的分佈,是決定選鑛傚果的關(guān)鍵。rude ore更多例句專業(yè)釋義能源科學(xué)技術(shù)原鑛