watercycle水循环双语例句：1.Thewatercycleconstitutesasetofhydrologicalprocessesonvariousconditionsofscales.水文循环机制涉及到各个尺度界面的水文过程关系。2.Accordingtotherulesofwatercycleandthebasiccharacteristicsofnaturalwaterresources,theconceptualmodelofenergytransformationnetworkofwaterresourcesisputforward.根据水文循环与天然水资源基本特性，给出了水资源生成与能量转换的概念模型。