water budget

• 水分平衡

water budget的用法和样例：

例句

1. Based on the experimental results, this paper analyzed the water equilibrium features and ecological adaptability of the dry-land crops in the loess hilly areas of south Ningxia.
   摘要依据田间试验结果，对宁南黄土丘陵区主要作物水分平衡特徵与水分生态适应性进行定量评价。