機器
alarm
assemble
automatic
avoid
base
changer
cut
device
electric
engineer
equipment
feeding
filter
frequency
furniture
guarantee
isolation
loading
lubrication
machinery
manual
material
modern
noise
oil
order
part
plan
plant
power
process
production
professional
protect
raw
run
safety
screen
service
signal
spare
speed
supply
system
uniform
vibration
voltage
volume
woodworking