機器
air
appliance
background
building
climate
cold
compressor
condenser
condition
conditioner
conditioning
control
cool
coolant
cooler
cooling
duct
duty
electric
electrical
electricity
energy
equipment
factory
fan
flow
heat
home
house
hvac
illustration
industrial
industry
machinery
metal
outdoor
outside
power
pump
refrigeration
repair
roof
row
system
technology
temperature
unit
vent
ventilation