硫化物集体大部由磁黄铁矿 、 镍黄铁矿 、 黄铜矿及黄铁矿组成.The sulfide assemlage consists largely of pyrrhotite, pentlandite, chalcopyrite, and pyrite.某些贱金属以及金常常与磁铁矿和磁黄铁矿这类磁性矿物一起被发现.Base metals and gold are often found in association with magnetic...
She faced charges of collaboration.她面临通敌的指控。Close collaboration between the Bank and the Fund is not merely desirable, it is essential.银行与基金会的紧密合作不仅可取，而且必不可少。Excellent team collaboration ability and communicative compete...