Among them the Precambrian and Cenozoic eras are the main metallogenic epoches in the world.
Among them the Precambrian and Cenozoic eras are the main metallogenic epoches in the world.
就全球而言，前寒武纪和新生代是金矿的重要成矿期。
Among them the Precambrian and Cenozoic eras are the main metallogenic epoches in the world.
就全球而言，前寒武纪和新生代是金矿的重要成矿期。