機器
air
appliance
blow
building
cold
collar
compression
compressor
condenser
conditioner
construction
cool
coolant
drain
electric
electrical
electrician
electricity
energy
equipment
external
factory
fan
flow
heat
home
hvac
industry
machinery
metal
office
outside
pipe
plant
power
pump
refrigerant
refrigeration
residential
safety
switch
system
technology
temperature
vent
ventilate
ventilation
ventilator
wall