英文關鍵字
alarm
assemble
autoloader
automatic
avoid
base
cut
device
electric
engineer
equipment
feeding
filter
floor
frequency
isolation
loading
machine
machinery
manual
material
modern
noise
order
panel
part
plan
plant
power
process
production
professional
protect
raw
rolls
run
safety
sandwich
service
signal
spare
speed
supply
system
vibration
voltage
volume