workmen and engineer working an planing on the job showing hands
Schlüsselwörter
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specialist,
job,
contractor,
paper,
skill,
diagram,
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blueprint,
indoor,
male,
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vignetting,
expertise,
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engineering,
wire,
person,
instrument,
engineer,
technology,
technician,
electricity,
measurement,
multimeter,
tool,
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cable,
men at work,
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electrician,
people,
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architect,
blueprint,
drawing,
wiring,
project,
maintenance,
hand,
human,
power,
man,
construction,
voltmeter,
electronic,
manual
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