The sulfide assemlage consists largely of pyrrhotite, pentlandite, chalcopyrite, and pyrite.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.Associated minerals are mainly magnetite and ilmenite, subordinately pyrite and rarely chalcopyr...
双亲本子代的生活力多半是相似的.The vigour of two - parent progenies was likely to be similar.子代和亲代相似性之定律是同一的.The laws of resemblance of the child to its parents are the same.我们主要讨论了作用在半群上取值于算子代数的完全单调函数.We mainly consider completely mon...