minh dang gap kho khan mong cac ban giup minh voi.Minh dang thuc hien bai gioi thieu ve cau tao va nguyen tac hoat dong ve detector NPD ( Nitrogen Phosphorus Detector ) , ung dung.Cac ban co biet tai lieu nao tham khao xin gioi thieu minh vơi.
minh dang gap kho khan mong cac ban giup minh voi.Minh dang thuc hien bai gioi thieu ve cau tao va nguyen tac hoat dong ve detector NPD ( Nitrogen Phosphorus Detector ) , ung dung.Cac ban co biet tai lieu nao tham khao xin gioi thieu minh vơi.