Mladá usmívající se muž vědec hospodářství digitální tabletu a při pohledu na zkumavky v laboratoři - Stock fotografie a obrázky

Portrait of cheerful scientist showing laboratory tubes and looking to camera

Scientist working in the lab, in protective mask examines a test tube with liquid

Side view of young man scientist holding test tube with reagent in lab

Young, male researcher/chemistry student carrying out scientific research in a lab (shallow DOF color toned image)

Selective focus of scientists in eyeglasses at workplace with flasks and microscope in lab

Young man scientist in eyeglasses and white coat examining test tube in laboratory

A male worker reseacher in a laboratory

Vials with liquids. Selective focus of transparent glass vials where liquids poured which staying in stand

Portrait of cheerful scientist showing laboratory tubes and looking to camera

Side view of young man scientist holding test tube with reagent in lab

Young man scientist in eyeglasses and white coat examining test tube in laboratory

Concentrated scientist in eyeglasses working with test tubes in lab

Side view of man scientist in eyeglasses looking at test tubes with reagents in lab

Portrait of smiling scientist showing laboratory tubes and looking to camera

Portrait of smiling man scientist working with test tube in lab

Scientist showing laboratory tube, focus on foreground