信xin號hao反fan饋kui裝zhuang置zhi安an裝zhuang在zai連lian接jie管guan上shang，當dang瓶ping組zu內nei滅mie火huo劑ji釋shi放fang時shi，連lian接jie管guan內nei滅mie火huo劑ji壓ya力li使shi信xin號hao反fan饋kui裝zhuang置zhi動dong作zuo並bing自zi鎖suo，氣qi體ti滅mie火huo控kong製zhi器qi接jie收shou到dao反fan饋kui信xin號hao後hou顯xian示shi該gai滅mie火huo裝zhuang置zhi已yi動dong作zuo。
