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The favorable source beds in this district are Presinian Kangding Group and DengyingFormation of upper Sinian series.
上震旦统灯影组前震旦系康定群是本区有利矿源层。
youdao
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The favorable source beds in this district are Presinian Kangding Group and DengyingFormation of upper Sinian series.
上震旦统灯影组前震旦系康定群是本区有利矿源层。
youdao