英文關鍵字
blue
cable
cables
elevator
energy
engine
interior
lift
lifting
light
lighted
motor
motors
pull
pulley
structure
system
transmision
work
working
英文關鍵字
blue
cable
cables
elevator
energy
engine
interior
lift
lifting
light
lighted
motor
motors
pull
pulley
structure
system
transmision
work
working