機器
angle
angular
armature
blade
circle
circular
construction
cut
cutter
danger
diamond
disc
disk
drill
electric
electrical
engineering
equipment
factory
flash
grind
grinder
hand
industry
iron
job
labor
manufacture
manufacturing
mechanic
metal
occupation
power
production
protection
repair
round
saw
sawing
spark
speed
spin
steel
technical
technology
tool
wheel
work
workshop