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封河

v.close a river pave

封河

封河

1

Ice jam is a serious ice regime in the river of north China , which is formed generally during ice flow and frozen -up .

冰塞是我国北方河流较严重的冰凌现象，一般形成于流凌封河期。

2

Ground resistivity technique measurement for ice jam early warning at freeze-up period of the Yellow River

黄河封河期冰凌预警地电测试技术研究

3

Research on Ice Jam Flood of Wanjiazhai Reservoir and HydrologicalRegulation Plan in Initial Freeze-up Period

万家寨水库凌情特点及初始封河期调度方案研究

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