仅仅7%的污水处理站符合国际标准。
Just 7% of sewage-treatment plants meet international standards.
对电镀废水处理站的总体设计依据及其内容进行了详细描述。
Basis and content on general design of wastewater treatment station were described in detail.
废水处理站的建造要考虑的两个重要问题是造价和占地面积。
Two important considerations for the construction of a waste treatment plant are the cost and availability of land.
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