粒状滤料过滤理论的主要内容是过滤机理、过滤方程式和反冲洗机理。
The main content of filtration theory of grainy filtering media consists of filtration mechanism, filtration equation and backwashing mechanism.
粒状滤料过滤理论的主要内容是过滤机理、过滤方程式和反冲洗机理。
The main content of filtration theory of grainy filtering media consists of filtration mechanism, filtration equation and backwashing mechanism.
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