Πορτρέτο του νεαρός επιστήμονας σε προστατευτικά γυαλιά κρατώντας δοκιμαστικό σωλήνα - Φωτογραφίες & Εικόνες Αρχείου

Handsome medical doctor in gloves and glasses is smiling while working with test tubes at the lab

Handsome medical doctor in gloves is working with test tubes at the lab

Side view portrait of a scientist, uses a test tube and looking at the camera while working on research in a modern laboratory

Handsome medical doctor in gloves and glasses is smiling while working with test tubes at the lab

Scientist looks at Liquid Samples in Flasks in Lab. Young Smiling Researcher wearing White Coat Gloves and Protective Glasses examining Chemical Liquid Samples. Scientist at Work in Laboratory

Young Scientist doing Research in Laboratory. Male Researcher wearing white Coat and Protective Gloves examining Chemical Liquid Sample in Flask. Scientist at Work in Laboratory

Concentrated male scientist in protective glasses making experiment in chemical lab

Concentrated bearded scientist in protective eyewear making experiment in laboratory

Partial view of professional scientist holding test tubes with blue liquid

Focused male scientist in protective goggles examining test tube in laboratory

Professional young chemists in lab coats making working with reagent in laboratory

Young male chemists in lab coats examining reagent in flask

Focused male scientist in white coat working with microscope in chemical lab

Young lab technician in white robe using microscope for sample analysis in laboratory