“黑矿层”的英语可以翻译为：lackband ...

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.斜长岩组中的矿层仅断续出露.Seams in the anorthosite series are only intermittently exposed.在穆斯科克斯杂岩体中,铬铁矿矿层仅产于长石质橄榄岩中.The chromite deposits in the M...

“矿层”的英语可以翻译为：ore bed，ore horizon，seam，stratum of ores，ledge ...

“矿层”的拼音为：kuàng céng...