機器
accessory
background
checking
close
closeup
controlling
craft
device
diamond
electrical
engineer
equipment
factory
fix
gem
gemstone
gold
goldsmith
hand
holding
hot
industrial
industry
inspecting
instrument
jewel
jeweler
jewelry
machining
maintenance
man
manufacturing
metal
microscope
moustache
occupation
pincers
pliers
precious
production
rings
serviceman
table
technology
tool
work
worker
workplace
workshop