機器
air
background
blow
building
climate
cold
compressor
condition
conditioner
conditioning
control
cool
coolant
cooling
electric
electrical
energy
equipment
fan
frame
heat
high
home
hot
house
illustration
industrial
industry
isolated
light
machinery
metal
office
outside
pattern
power
rotate
supply
switch
system
technology
temperature
unit
ventilate
ventilation
ventilator
wall
warm
white