集中报警器
central fire alarm control panel
central fire alarm device
区域火灾报警器
Fire-alarm Device for an area
电脑化火警警报传送系统
computerized fire alarm transmission system
过热及火灾报警
overheat and fire forecast
后向喇曼散射光纤感温火灾报警系统
Raman backscattering optical fiber temperature fir