adult
at work
builder
cable
caucasian
circuit
construction
direct current
dwelling
electric
electrician
energy
equipment
fixing
hand
hands
helmet
home
industry
install
labor
lifesaving switch
male
measurement
measuring instrument
multimeter
notepad
occupations
pen
person
plier
profession
professional
protection
repair
scissors
screwdriver
switch
switch magnetermic
switchboard
technician
tester
tighten
tool
tools
tools isolated
voltage
work
work safety
worker
writing
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