Kaksi teknikkoa katselee nestettä lasipullossa - Kuvapankin valokuva ja kuva

Observing the liquid and man

Liquid testing and man

Man and woman looking at liquid in glass flask

Man and woman performing experiment in laboratory

Supervisor watching female lab technician

Male and female lab technicians at work

Woman holding glass flask, man recording results

Inspecting the chemical contents

Finding the solution and chemical

Female technician looking at liquid in glass beaker

Chemical experiment in lab

Chemical scientist and man

A team of lab chemists discussing the result

Serious thoughtful medical colleagues discussing results in lab

Group of researchers during work on devices in laboratory