英文關鍵字
alarm
button
contact
design
factory
finger
green
machine
machinery
mechanical
off
panel
press
pressing
process
push
pushing
red
signal
start
switch
turn
英文關鍵字
alarm
button
contact
design
factory
finger
green
machine
machinery
mechanical
off
panel
press
pressing
process
push
pushing
red
signal
start
switch
turn