Χαρούμενο αγόρι κρατώντας δοκιμαστικό σωλήνα με κόκκινο υγρό κοντά στο μικροσκόπιο και σοβαρό κορίτσι στο εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

Amazed girl holding test tube with red liquid near smiling boy and microscope in lab

Little boy ang girl in white coats using microscope in chemical laboratory

Little boy and girl in white coats using microscopes and reagents in chemical laboratory

Cheerful boy holding jar with chemical substance near girl in eyeglasses and test tubes in lab

Kids in white coats using microscope and calculator in chemical laboratory

Dangerous experiment. Beautiful nice girl covering her mouth while looking at cheerful boy who combining liquids

Blue liquid. Joyful sweet blond girl taking vial from stand while grinning and standing near microscope

Let me see. Cute skillful little girl wearing lab coat while touching microscope and staring down

Scientist in goggles holding electronic pipette near african american colleague with clipboard and test tubes

African american scientist in safety goggles and medical mask working with microscope near test tubes

Ill african american scientist holing napkin near medical equipment and colleague

Young scientist in latex gloves and medical mask reaching test tubes near blurred microscope

Handsome scientist writing near microscope and test tubes

Side view of scientist in white coat looking at test tube near medical equipment

Scientist in latex gloves and medical mask writing in notebook near test tubes and microscope

Side view of scientist in latex gloves using microscope near digital tablet with blank screen and equipment

Selective focus of scientist in white coat holding clipboard and touching test tube