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alternating
closeup
current
design
device
digital
direct
electric
electrical
electrician
electricity
electronic
electronics
engineer
engineering
equipment
hand
hands
holding
industrial
industry
installation
machine
manual
measurement
measuring
modern
monitoring
multifunctional
multimeter
parameter
production
profession
professional
reading
technical
technician
technology
test
tester
use
voltmeter
work
worker
working
workshop