機器
air
alloy
aluminium
blower
blue
building
chiller
chimney
circulation
conditioner
construction
control
cool
cooling
drain
duct
electric
emission
engineering
factory
fan
flow
heat
hood
industrial
industry
infrastructure
mechanics
metal
metallic
motor
pipe
pipeline
plant
pollution
pump
roof
sky
smoke
steel
structure
suction
system
systems
technology
temperature
vent
ventilation
warehouse