機器
adult
box
cable
caucasian
circuit
construction
control
diy
electric
electrical
electrician
electricity
electronic
energy
engineer
engineering
equipment
fuse
hand
hardhat
hat
helmet
industrial
industry
job
line
maintenance
male
man
manual
occupation
panel
person
power
professional
protective
repair
repairman
safety
service
technician
technology
tool
voltage
wire
work
worker
young