optical smoke detector

常用电气及... ... Manual alarming button 手动报警按钮 40 Optical smoke detector 光电感烟探测器 41 Push button 报警按钮 42 ...

... optical slope corrector 光学坡度改正器 optical smoke detector 光学烟感器 optical solar simulator 光学太阳模拟器 ...

... ) very early smoke detection 极早期烟雾探测 ) optical smoke detector 光敏烟雾探测器 ) smoke detection 烟雾探测 ...