Счастливый седой ученый в лабораторном халате держит фляжку с реагентом в лаборатории - Стоковое фото и изображение

Happy mature scientist in lab coat holding flask with reagent at laboratory

Senior male researcher carrying out scientific research in a lab (shallow DOF; color toned image)

Portrait of focused scientist looking at hand through magnifying glass in laboratory

Senior male researcher carrying out scientific research in a lab (shallow DOF; color toned image)

Concentrated senior bearded scientist in white coat writing in clipboard on tanle with flasks in chemical laboratory

Grey haired scientist sitting and looking at camera while woman working at laboratory

Portrait of tired senior scientist sitting at workplace and looking at camera

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Smiling chemist in protective eyeglasses holding test tube with reagent in lab

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Concentrated bearded scientist working with microscope and laptop in laboratory

Concentrated bearded scientist working with microscope in laboratory