cheerful
clothing
development
electric
electropower
engineer
engineering
estate
factory
foreman
foremaster
hardhat
head
heat
helmet
high
hv
industrial
industry
inspector
instruments
jacket
leader
male
man
manager
oil
outdoors
person
plan
power
professional
project
protection
protective
refinery
reflecting
safety
station
successful
supervising
supervision
supervisor
visibility
work
worker
workman
workplace
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