The present invention provides a Porous polytetrafluoroethylene membrane and method of producing the same, and filter medium.
本发明提供聚四氟乙烯多孔膜、其制造方法及过滤材料。
2
The device used for realizing the water treatment method comprises a water pump, a pretreatment device, a security filter and a nanofiltration membrane separating device.
实现该水处理方法的设备包括水泵、预处理装置、保安过滤装置、纳滤膜分离装置。
3
Describes a comprehensive assessment method by fuzzy mathematics, and gives an example showing how to select best microporous membranefilter materials.