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...
The door clanged shut behind them.门在他身后咣的一声关上了。A little later the church bell clanged.过了一小会儿，教堂的钟当当敲响了。His heart clanged like fifteen buckets in a single well.他心头上十五个吊桶打水,七上八下....