Портрет красивого зрелого лаборанта мужского пола, сконцентрированного - Стоковое фото и изображение

Mature male technician analyzing microtiter plate in laboratory

Mature lab technician holds two test tubes with different liquids

Attentive mature scientist dripping reagent into a test tube

Mature scientist holding flask in chemical lab

Mature scientist checking reagent into test-tube

Portrait mature male scientist holding magnifying glass in lab

Mature male doctor looking confused

Close-up portrait of a male researcher holding a test tube

Doctor reading a document while holding a test tube in a laboratory

Male researcher holding flask with blue liquid in the lab

Young male scientist working in the lab

The doctor who thinks

Portrait of smiling senior scientists in lab

Man and woman in whitecoats analyzing chemical substances

View of male scientist through metal tube

Doctor checking medical laryngoscope in emergency room

Confident man holding a laboratory glass

Photo of a lab assistant holding a flask and pipette