“ice break-up of river”的概念、定义、翻译、参考文献-科学参考

单词	ice break-up of river
释义	ice break-up of river Encyclopedia 工学河流冰情释 ice break-up of river河流解冻气温上升至0℃以上时，封冻河段在热力和水力作用下冰盖融化和鼓裂，在较长的河段内已没有固定的冰盖，且敞露水面上下游贯通，其面积超过河段总面积20%的现象。又称开河。
随便看	agricultural environmental monitoring agricultural environmental planning agricultural environmental pollution agricultural environmental protection policy agricultural environment governance agricultural environment information acquisition agricultural environment protection law agricultural environment value added energy agricultural expert system agricultural expo agricultural extension agricultural extension communication agricultural extension demonstration Agricultural extension education agricultural extension framework model agricultural extension information service agricultural extension information system agricultural extension methods agricultural extension of human resources agricultural extension organization agricultural extension program agricultural extension project agricultural extension science Agricultural extension skills agricultural extension test

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