air conditioning unit
空气第装置
空气调节单元
空调机组
空调装置
单元式空调机组
空气调节机
空调器
空调
空调机
central air conditioning unit
electrical explosion proof
explosion proof armoured door
explosion proof control
explosion proof luminaire
Explosion proof measures
explosion proof test bench
Fireproof and explosion proof
integrated explosion proof system
intrinsically safe explosion proof