试验旨在为设计一套农村小型集中式或分散式除氟供水设备提供参考。
The experiment aimed to make reference to design a rural small-scale centralized or distributed defluoridation water supply equipment.
试验旨在为设计一套农村小型集中式或分散式除氟供水设备提供参考。
The experiment aimed to make reference to design a rural small-scale centralized or distributed defluoridation water supply equipment.
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