機器
apprentice
apprenticeship
black
boss
career
caucasian
college
diversity
engineer
ethnic
eyewear
factory
foreman
hardhat
helmet
indoor
industrial
industry
inspector
internship
labor
lathe
learning
male
man
manager
manufactory
manufacture
manufacturing
mechanic
occupation
operation
people
production
professional
protective
teacher
teaching
technical
technician
together
tool
training
tutor
two people
worker
working
workshop
定額
Engineer man training with foreman for apprentice using lathe, apprenticeship teaching with worker, technician and learning, inspector and labor, internship and workshop, industrial concept.の素材 [FY310198538561]
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