機器
automation
blade
caution
circle
circular
construction
cut
detail
die
disc
disk
drill
electric
equipment
factory
flash
grind
grinder
hand
heavy
industrial
industry
iron
job
join
light
man
manual
manufacture
metal
person
power
prefabricate
protection
repair
safety
skill
spark
sparks
speed
spin
steel
technical
technology
tool
turning
work
worker
workplace