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    • 30. 发明专利
    • DOSE SYSTEM
    • CA2391173A1
    • 2003-02-07
    • CA2391173
    • 2002-06-19
    • KING TECHNOLOGY INC
    • KING JOSEPH A
    • C02F1/68C02F1/00
    • An apparatus and method for delivering both quick dispensing water treatment materials and slow dispensing water treatment material's from the same dispensing unit by dispensing the slow dispensing water treatment materials over an extended period of time an d tile quick dispensing water treatment materials in a,matter of minutes to allow he container for the quick dispensing water treatment materials to be removed and replaced with either a container containing a different quick dispensing water treatment materials or a container containing a slow dispensing water treatment material and a closed container for holding a quick dispensing water treatment materials therein arid for dispensing the quick dispensing water treatment material therefrom through a process of cress circulation between a fluid stream of waster and the quick dispensing water treatment material in the container. 23