A kémia laboratóriumában korszerű mikroszkópot használó férfi tudós - Stock fotó és kép

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Male scientist using modern microscope in chemistry laboratory

Portrait of serious practitioner while doing experiment - Fotó, kép

Pouring down. Attractive medical worker wearing white smock and blue rubber gloves bowing head while looking at test-tube

Laboratory diagnosis of synthetic substances, Scientist or researcher examines the substance in vitro and record information, Lab experiments, Researchers scientist working analysis with test tube.

Portrait of serious medical worker while inventing new reagent - Fotó, kép

Fascinating moment. Very attentive researcher bowing his head and keeping mouth opened while mixing two different chemical agents

Attentive male person taking chemical agent - Fotó, kép

Take this liquid. Serious researcher bowing head while looking at test-tube and leaning elbows on the table

Delighted male person looking at test-tubes - Fotó, kép

Sure hand. Concentrated researcher keeping his mouth opened and sitting at workplace while doing analysis.

Scientists experiment with synthetic substances from nature to modify the genetics or DNA of plants to be resistant to disease, Lab experiments, Researchers scientist working analysis with test tube.