機器
architect
arm
build
builder
collage
construction
contractor
craftsman
crane
danger
employment
equipment
girl
group
helmet
home
industrial
industry
instrument
job
laborer
machinist
male
man
manufacture
mask
object
people
person
profession
professional
protection
protective
repair
repairman
safety
set
specialist
technical
tool
tower
uniform
warning
weld
welder
woman
work
worker
workplace