digital tablet
デジタルタブレット
asian
building
business
check
chemical
chemistry
construction
control
engineer
engineering
environment
facility
factory
foreman
helmet
industrial
industry
inspector
leadership
maintenance
man
management
manager
night
occupation
oil refinery
operation
operator
people
person
petrochemical
petroleum
plan
plant
power
professional
safety
site
supervisor
technician
technology
work
worker
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