機器
automatic
automation
bearing
close up
construction
control
direction
door
droplet
electricity
engineering
entrance
equipment
fence
fitting
furniture
gate
gear
geometry
hardware
heavy
house
industrial
installation
iron
manufacture
metal
modern
motor
object
production
protection
real
remote
rock
roller
security
skeleton
slide
steel
structure
surface
system
technician
technology
wheel
work