機器
adult
builder
check
construction
control
contruction
crire
drawing
electric
electrical
electrician
engineer
engineering
facilities
factory
foreman
hard
hardhat
hat
heavy
helmet
holding
industrial
industry
inspection
inspector
maintenance
male
man
manual
manufacturing
oil
people
person
plant
plantes
portrait
power
professional
quality
reading
safety
scheme
studies
team
technology
work
worker
workman