保护箱 meaning in Chinese

guard box

Heating box protection box
保温箱或保护箱
Electrical equipment for aircraft . feeder protection housing for direct current generator
飞机电气设备.直流发电机馈线保护箱
Electrical equipment for aircraft . housings for controls and protection of alternating networks
飞机电气设备.交流网络控制和保护箱
Pbg type flameproof high voltage vacuum power distribution set series and bbd type flameproof low voltage protection case series are appropriate to environment with explode gas in underground coal mine
Pbg型矿用隔爆型高压真空配电装置系列和bbd型矿用隔爆型低压保护箱系列，适用于煤矿井下具有爆炸性气体的环境中。