... soft water closed circulation 软水密闭循环 pool water reverse circulation 逆流式循环 pool water combined circulation 混合流式循环 ...
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逆流式循环
Countercurrent circulation
以上为机器翻译结果,长、整句建议使用 人工翻译 。
对于公用性大型泳池采用逆流式循环给水系统;
Large public swimming pool applies inverse-flow-style cycling water supply system.
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