機器
band
blade
board
building
business
carbide
coolant
craft
cut
dangerous
depth
design
electricity
energy
engineering
field
fix
guard
improvement
machinery
manufacture
manufacturing
metal
object
oil
pension
plant
pollute
power
production
saw
sawdust
sawing
shallow
sharp
shop
smog
smoke
steel
table
technology
teeth
tool
water
wood
woodshop
woodworking
work