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8 résultats pour : lab tests

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A computer control console at the Boeing Company laboratory
UMG22A39_167

A computer control console at the Boeing Company l...

A laboratory technician student
UMG22A17_227

A laboratory technician student

Laboratory tehcnician
UMG22A17_222

Laboratory tehcnician

Smelling Grain Inspector
UMG20A14_036

Smelling Grain Inspector

Cultivating Germs
UMG20A12_398

Cultivating Germs

Scientist With Microscope
UMG20A12_401

Scientist With Microscope

Searching For Germs
UMG20A12_394

Searching For Germs

Chemist Working In A Lab
UMG20A12_395

Chemist Working In A Lab