冰情
Finally, combine these three methods to determine the slope length limit of longitudinal ground road under snow and ice conditions.
最后结合上述三种方法确定冰雪条件下地面道路的纵坡坡长限制指标。
The process of ice conditions developing for Bohai sea and north area of Yellow sea in winter season during 1982-1983 are analysed in this paper. It can be found that there are characteristics of ice in this winter season.
本文分析了1982~1983年冬季渤海及黄海北部冰情发展过程,其特点如下:初冰日普遍推迟;
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