機器
building
construction
design
engine
engineer
engineering
equipment
factory
female
gas
hard
hat
heavy
helmet
industrial
industry
interior
job
labor
machinery
manufacturing
mechanic
mechanical
metal
occupation
overall
people
person
plant
portrait
power
production
professional
protective
safety
service
site
steel
technician
technology
turbine
uniform
woman
work
worker
workman
workplace
wrench