機器
air
background
blade
blow
blower
cold
compression
compressor
condenser
condition
conditioner
conditioning
cool
cooler
cooling
drain
duct
duty
electric
electrical
electricity
engineering
factory
fan
flow
fresh
grill
heat
hot
hvac
industrial
industry
machinery
mechanical
mechanics
pipe
plant
propeller
refrigerant
refrigeration
system
technology
temperature
vent
ventilate
ventilation
ventilator
warm
wind