英文關鍵字
big
blades
computer
cooling
cools
duct
ducts
factory
fan
floor
generic
industrial
industry
large
off
place
powerful
room
spinning
spins
summer
switch
switched
tech
technology
test
turned
vent
venting
vents
work
英文關鍵字
big
blades
computer
cooling
cools
duct
ducts
factory
fan
floor
generic
industrial
industry
large
off
place
powerful
room
spinning
spins
summer
switch
switched
tech
technology
test
turned
vent
venting
vents
work