英文關鍵字
aeration
air
alloy
aluminium
antique
bottom
ceiling
chimney
circulation
concept
conditioner
control
cool
cooler
cooling
design
drain
emission
environment
equipment
exhaust
exterior
factory
heat
hood
image
industrial
industry
interior
iron
metal
metallic
modern
nature
object
old
outlet
outside
pollution
roof
roofing
rotated
round
system
technology
temperature
that
vent
ventilation
ventilator
venting
view
vintage
warehouse
warm
zinc