【医】 prechlorination
beforehand; in advance; pre-requisite; ready; up front
【经】 in advance; in anticipant
chlorine
【医】 C1.; chlor-; chlorine; chlorinum; chloro-; chlorum; niton
antisepsis; disinfect; disinfection; listerize; sanitize; sterilize
【化】 antipoisoning; sterilization
【医】 degerm; degermation; disinfect; disinfection; sterilisatio
sterilization; sterilize