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Close up of two female engineers using voltage and current tester at plastic hand. Scientist, wearing in white uniform, inspect part on which passing electricity at prototype of plastic hand of robot.
Hand holding shiny light bulb on dark background. New idea concept
Hand holding light bulb on dark background. New idea concept
Scientists are experimenting and examining specimens with microscopes in the lab.The invention of a vaccine to inhibit the corona virus, covid-19
Composition of lit light bulb and laptop with network of connections on blue background. lightbulb moment, electricity, inventions and technology concept digitally generated image.

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