Chercheur de laboratoire. femme porte un masque protecteur. Faire des expériences en laboratoire. Testez votre sang. scientifique en masque facial et gants tenant une éprouvette avec de la substance rouge. Inspecteur vérifiant les éprouvettes. - Photo & image de stock

Coronavirus treatment. Doctor respirator mask. Infection vaccine and blood test. Medical worker testing tubes vaccination. Black and white. Creating vaccine. Blood samples. Medical professional

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Laboratory researcher. woman wears protective mask. Making lab Experiment. Test your blood. scientist in face mask and gloves holding test tube with red substance. Investigator checking test tubes.

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Woman architect in checkered shirt inspecting construction. Building project management and audit. portrait of an industrial engineer. girl working engineering in industry. Female engineer in hardhat

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Girl engineer or architect. Home renovation. Lady at construction site. Warehouse woman worker. Quality inspector. Black and white. Construction job occupation. Construction worker. Woman builder in

Happy kid engineer with brick in hard hat, contractor. Black and white.

Teen girl builder in protective helmet use tape measure, measurement.

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Happy kid engineer in hard hat, copy space, profession.

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