Νεαρή γυναίκα επιστήμονας εξέταση χημικού δείγματος σε δοκιμαστικό σωλήνα στο εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

Young female scientist examining chemical sample in test tube in lab

Closeup of a female researcher holding up a test tube and a retort and carrying out experiments

Portrait of cheerful scientist showing laboratory tubes and looking to camera

Young student conducting a foaming experiment in elementary science class - looking very surprised by the result

Teen girl student caring out experiments in chemistry class.high school students with microscopes in laboratory

Teen girl student caring out experiments in chemistry class.high school students with microscopes in laboratory

Woman scientist in protective goggles holding flask with reagent and pipette in lab

Young female scientist examining chemical sample in test tube in lab

Two female scientists working with reagents in test tubes in laboratory

Female scientist holding test tube with reagent in chemical laboratory

Young concentrated female scientist making experiment in chemical lab

Young female scientist examining chemical sample in test tube in lab

Close-up partial view of female scientist holding test tubes with reagents in lab

Young pensive female scientist looking at test tube with chemical sample in lab

Young female scientist working with reagent in chemical laboratory