Based on the structure features of transverse and counter flow type cooling towers, revamping for cooling tower through structure optimization was explored.
从横流式和逆流式冷却塔的结构特点出发，探讨以结构优化方式改造冷却塔的途径。
The secondary treating water from urban domestic sewage treatment plant was treated by fine membrane with the way of periodic counter-flow static type.
本研究对城市生活污水处理厂二次处理水，采用周期逆洗型静态过滤方式进行了精密膜过滤。
The secondary treating water from urban domestic sewage treatment plant was treated by fine membrane with the way of periodic counter-flow static type.
本研究对城市生活污水处理厂二次处理水，采用周期逆洗型静态过滤方式进行了精密膜过滤。
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