Hűtőgép és olajos cseppfolyósított, sárga színű folyékony anyag - Stock fotó és kép

Lab assistant adding oily liquid in test tube with transparent yellow substance

Biologist dripping liquid in tube with green plant, biofuel production, industry

Researcher analyzing blue transparent liquid in tube, laboratory experiment

Laboratory technician with tablet PC analyzing blood serum in test tube

Researcher dripping orange substance on test glass, studying liquid properties

Chemist adding oily substance in tube with blue test liquid, dissolvent analysis

Medical worker adding few drops of blue liquid into test tubes, chemistry

Person in protective suit taking sample with poison from test-tube, researches

Chemical laboratory researcher examining test tube with naphtha, fuel quality

Scientist in protective suit taking liquid sample from test tube with radiation

Researcher conducting blood test at modern medical laboratory, health care