The farmers found the alluvial deposits at the mouth of the river very fertile.
农民发现这条河口底下
很肥沃。
,冲层
床The farmers found the alluvial deposits at the mouth of the river very fertile.
农民发现这条河口底下很肥沃。
Four alluvial deposits distributing along Yuanjiang river and the diamondiferous rocks that supply diamonds to these placer deposits have striking properties of varied sources and multi-phases.
沅水流域分布4个
刚石
床，供给刚石含刚石岩体具多期多源特点。
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