change of water quality

• 水质变化

change of water quality的用法和样例：

例句

1. Experiment was made to simulate slow flow riverway of plain at the aim to find effect of water quality on current velocity and quality of input water.
   文章利用模拟实验开展了平原地区缓流河道中的水质变化对河道水流速度与来水水质的响应规律研究。
2. The variation characteristics of shallow confined groundwater are similar with phreatic water.
   浅层承压水含水组的地下水质变化特征和潜水基本一致。