機器
control
department
electronic
engineer
engineering
equipment
expertise
factory
gloves
hardhat
helmet
horizontal
indoor
industrial
industry
instrument
job
machinery
machining
maintenance
man
manager
manufactory
manufacture
manufacturing
mechanic
metal
occupation
operating
process
production
professional
protection
protective
repairman
safety
serviceman
skill
standing
teamwork
technician
tool
turning
work
worker
workman
workplace
workshop
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