“铁锰”的英语？

少部分的银可能以吸附离子形式存在于铁锰矿物中.Slight amounts of silver exist in Fe - Mn minerals as adsorbed ions.一种由铁锰钨酸盐组成的矿物, 晶体状,主要的钨矿石,见于与花岗岩伴生的石英脉中.A fine - grained, light - colored granitic rock consisting primarily of orthoclase and qu...