機器
beam
big
blade
c
channel
circle
circular
construction
cut
cutting
disc
disk
electric
engineering
equipment
factory
flash
frame
girder
grind
grinder
grinding
heavy
industrial
industry
iron
light
manual
manufacture
manufacturing
material
mechanic
metal
power
production
rotate
saw
solid
spark
speed
spin
steel
structure
tool
u
wheel
work
worker
workshop