1) freeze-up
封河
1.
Based on ice jam mechanism,hydraulics model and energetics model are introduced into this research and well simulate water level,freeze-up and break-up date of each spring in Wudinghe River.
根据冰塞形成发展的机理,利用水力学模型和热力学模型模拟研究了无定河流域下游段丁家沟至白家川的每年春季河流水位、封河日期和开河日期。
2) freeze-up date
封河日期
3) freeze-up mechanism
封河机理
1.
In this paper, river ice hydraulics, freeze-up mechanism and the factors influencing freeze-up were analyzed, and the freeze-up predic.
分析了河冰水力学、封河机理及影响封河的因素 ,并根据封河机理和影响封河的因素 ,建立了封河预报数学模型 。
4) freeze-up forecasting
封河预报
1.
For the study of freeze-up forecasting model in in Inner Mongolia reach,now it changed to combining theories and experiences from statistic model.
对于内蒙古河段封河预报模型的研究，经历了从数理统计到理论与经验相结合的阶段，现行预报方法多是以理论与经验相结合为基础，并进行适当的实时修正。
补充资料：封河
冰封闭了河面：～期。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。