機器
check
close up
construction
control
copy space
engineer
engineering
equipment
face
factory
hardhat
helmet
industrial
industry
inspector
machinery
maintenance
man
manufactory
manufacturing
mechanic
metalwork
modern
occupation
operating
operator
plant
portrait
power
production
professional
protective
repairman
safety
service
serviceman
shop
steel
technical
technician
technology
uniform
work
worker
workman
workplace
workshop
write