grade of mined ore采矿: mining; mine品位: grade精矿品位: concentrate grade; concentrategrade尾矿品位: tailings grade石膏原矿品位: grade of gypsum raw ore下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:采矿品位,即可在微信中查询翻译