英文關鍵字
action
board
cabinet
casing
chain
continuos
control
cover
covering
detail
device
electricity
electromechanical
energy
engine
equipment
factory
fell
force
frame
golden
hole
industrial
industry
interior
job
lathe
lot
machine
manufacturing
material
mechanic
metal
nopeople
plant
power
press
process
production
recycle
stamp
tool
tray
work