機器
ac
air
appliance
background
building
climate
cold
commercial
compressor
condenser
condition
conditioner
conditioning
control
cool
cooler
cooling
electric
electrical
electricity
energy
equipment
fan
flow
gas
heat
heating
home
hot
huge
hvac
industrial
industry
large
machinery
metal
outdoor
outside
power
repair
roof
rooftop
row
sky
system
technology
temperature
unit
units
ventilation