marking lamp for fire evacuation的意思|示意

火灾疏散标志灯 火灾疏散照明灯 light for fire evacuation 火灾疏散标志灯 marking lamp for fire evacuation 火灾备用照明 reserve lighting for fire risk ..

消防疏散标志灯 ... 消防疏散照明灯light for fire evacuation 消防疏散标志灯marking lamp for fire evacuation 消防备用照明reserve lighting for fire risk ...