英文關鍵字
air
blades
bottom
building
ceiling
climate
conditioner
cool
cooling
dilapidated
electric
electrical
electricity
equipment
exhaust
external
factory
fan
flow
galvenised
grunge
grungy
guard
industrial
industry
large
machine
mechanical
motion
motor
obsolete
old
power
prop
propeller
retro
rotate
rotation
rotor
rusty
side
slow
slowly
system
technology
turbine
turning
unit
vent
ventilate
ventilation
ventilator
video
view
wall