绿片岩相以下的动力变质作用是矿化富集的条件.Dynamical metamorphism under greenschist facies is the condition of mineralizing enrichment.卯独庆金矿床赋存在古元古代二道凹岩群的绿片岩层与大理岩层过渡带.Maoduqing gold deposit occurred in the green schist and marble stratum bel...
Development of aquaculture offers another means of supplying man with fish protein.水产养殖业的发展为人类获取鱼蛋白提供了另一种手段.Sinonovacula constricta ( Lamarck ) , a kind of mollusks , is important in marine aquaculture.缢蛏 ( Sinonovaculac...