機器
accuracy
angular
art
blade
bulgarian
circle
circular
construction
control
cut
disc
drive
engineering
equipment
factory
grinder
industrial
industry
iron
machinery
man
manufacturing
material
metal
move
operator
placement
plant
polished
production
repair
round
saw
sculptor
sculpture
security
skills
spark
spring
steel
strength
technology
texture
tool
welding
work
worker