機器
architecture
building
cage
caucasian
construction
contractor
craftsman
danger
dangerous
development
device
elevated
elevation
elevator
engineering
equipment
height
human
industrial
industry
job
labor
laborer
lift
lifting
machinery
male
man
manual
occupation
operating
operator
outdoor
people
platform
profession
professional
protection
protective
safety
site
structure
tool
vehicle
vest
worker
working
workman