主铬铁岩矿层及麦仑斯基矿层出露不好.The Main Chromitite Seam and the Merensky Reef do not outcrop well.希腊生产耐火级铬铁矿石已有百余年历史.Greece has been producing refractory grade chromite ore for more than a hundred years.铬铁废渣是生产铬盐或其氧化物所排放的废渣.Cr - Fe w...
A spokeswoman for Mr Prescott yesterday made it clear that he had been unhappy at his exclusion.普雷斯科特先生的发言人昨天表明他对于自己被拒绝十分不满。A spokeswoman said the agreement had been declared null and void.女发言人称该协议已宣布无效。A United Nations ...