喷水灭火系统报警阀延迟室的英文

sprinkler alarm valve retard chamber

• 喷水:    dabble; water spra ...
• 灭火系统:    fire extinguisher ...
• 报警:    give an alarm
• 阀:    established house ...
• 延迟:    delay; lag; defer; ...
• 室:    room