南昌自来水加大氯气注入 需静置两小时以上再用？

















































南昌自来水加大氯气注入 需静置两小时以上再用？

















































during the epidemic, during the tap water treatment process, the injection of chlorine gas was increased within the allowable range
during the epidemic, during the tap water treatment process, the injection of chlorine gas was increased within the allowable range
creates fear of the injection of chlorine gas in tap water treatments
general public
coronavirus, nanchang, tap, water, treatment, chlorine, gas, injection, allowable, range