機器
accurate
apparatus
assemble
automate
automatic
business
car
closeup
connect
construction
control
danger
detail
device
electrical
electrode
electronic
engineering
equipment
factory
gun
guntype
heavy
hot
industrial
industry
instrument
machinery
manufacture
mechanical
metal
metallurgy
metalwork
plant
prepare
production
professional
robot
safety
spot
steel
tool
welder
welding
workplace
workshop