略谈河流的冰情赵凤勉位于地球上中高纬度的河流，每逢冬季一般都有结冰现象，冰期长短各异，使得某些河流航运受阻，因此应进一步勘查、分析，掌握其规律，按规律办事，利国利民。现略谈河流冰情如下：河流冰情的发展可分三个阶段１．结冰：当气温降到０℃以下，水温降到... A brief talk on the ice of the river Zhao Feng Mian is located in the mid-high latitude of the earth’s rivers, every winter generally icing phenomenon, the ice age varies, making some of the rivers blocked shipping, it should be further exploration, analysis, to grasp its laws , According to the law, Li Guo Min. Now a brief talk about river ice is as follows: The development of river ice can be divided into three stages 1. Icing: When the temperature drops below 0 ° C, the water temperature drops to ...