• The present invention provides a Porous polytetrafluoroethylene membrane and method of producing the same, and filter medium.

    发明提供聚四氟乙烯多孔、其制造方法过滤材料

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  • 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.

    实现该水处理方法设备包括水泵预处理装置保安过滤装置分离装置。

    youdao

  • Describes a comprehensive assessment method by fuzzy mathematics, and gives an example showing how to select best microporous membrane filter materials.

    采用模糊数学综合评价方法,对几种新型过滤材料—覆膜滤料的性能进行综合评价,以便于优化选择。

    youdao

  • Describes a comprehensive assessment method by fuzzy mathematics, and gives an example showing how to select best microporous membrane filter materials.

    采用模糊数学综合评价方法,对几种新型过滤材料—覆膜滤料的性能进行综合评价,以便于优化选择。

    youdao

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