英文關鍵字
air
appliance
big
blades
close
conditioner
conditioning
control
cooling
decelerate
detail
device
domestic
down
electric
equipment
exterior
external
fan
heat
home
house
hvac
large
motor
off
outdoor
outside
part
power
rotating
rotation
slow
slowing
stopping
system
temperature
turbine
turn
turning
vent
working