Scientist's hand holding glass test tube in research laboratory on blue background
Schlüsselwörter
scientist,
hand,
holding,
glasses,
test tube,
research,
laboratory,
blue background,
chemistry,
experiment,
scientific,
discovery,
innovation,
laboratory,
equipment,
chemical,
analysis,
beaker,
flask,
researcher,
study,
investigation,
science,
exam,
experimentation,
technically,
technician,
chemist,
biotechnology,
potion,
formulation,
diagnostic
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