研究了黄河干流区域间取水权市场。
Yellow River trunk stream RWTR market among regions is studied.
后来主要是干流城市相对地位的变化。
After that the relative position of cities on main river changed.
松花江肇源江段是松花江干流水质监测的前哨。
Zhaoyuan section is the frontage of monitoring water quality of Songhua River main stream.
长江中下游干流河道内的砂石是较好的建筑和填筑材料。
The sand and gravel in the Yangtze river is good building and filling materials.
长江中下游干流河道内的砂石是较好的建筑和填筑材料。
The sand and gravel in the Yangtze river is good building and filling materials.
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