機器
analysis
careful
check
communication radio
control
conveyor belt
danger
engineer
equipment
examining
factory
helmet
high
indoor
industrial
industry
inspector
instrument
line
maintenance
male
man
monitor
note
occupation
operator
people
plant
power
process
production
professional
repair
safety
service
site
supervisor
system
technical
technician
technology
think
tool
trainee
warehouse
work
worker
write
young
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