释义 |
Yunkai Group 基本例句 云开群 The Upper sub-group of Yunkai group and Bacun group may be the ore source beds which are characterized by higher Au abundance.赋金地层主要为云开群上亚群和寒武系八村群,它们具有较高的含金丰度,可作为本区金的矿源层。 Some Remarks on the Geologic Age and Stratigraphic Sequence of Yunkai Group in Yunkai Mountains云开大山云开群地层时代和层序的研究现状与新认识 |