sprinkler alarm gong喷水: dabble; water spray; water j ...灭火系统: fire extinguisher system报警铃: emergency alarm bell喷水灭火系统报警阀: sprinkler alarm valve喷水灭火系统报警阀阀瓣: rinkler alarm valve cla er; sprinkler alarm valve clapper下载手机词典可随时随地查词查翻译
