quality of water environment 水环境质量
water quality of water source 水源水质
Models of Water Quality 水环境生态学模型
Stability Technique of Water Quality 水质稳定技术
quality of ground water 地下水水质
the quality of water 水的质量
So we can use the most economical method to make the best quality of water.
这样我们可以用最经济的方法使内河水质达到最大的清洁度。
参考来源 - 基于地表水环境模型系统（SMS）的城市内河水污染控制研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The quality of water is analysed.
对产水水质进行了测试。
To improve the quality of water also prevented the loss of production, increased product output rate.
在改善品质的同时也阻止了产生水分损失，增加了产品的产出率。
The overall quality of water and sanitation remains very poor, therefore facilitating cholera transmission.
水和环境卫生的总体质量仍然极差，从而助长了霍乱传播。
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