Technician checking water samples through a microscope in the quality control laboratory of a water treatment plant.

- Image ID: B3XTN5
Technician checking water samples through a microscope in the quality control laboratory of a water treatment plant.
H. Mark Weidman Photography / Alamy Stock Photo
Image ID: B3XTN5
20's, 20-25, 20-30, 20s, 25-30, adult, analysing, apparatus, apparel, assessment, clothes, clothing, color, colour, concentrating, device, experimentation, fellow, garment, gentleman, guy, human, human being, illumination, indoor, inside, lab, machine, magnifier, male, one, person, radiant, research, seated, specialist, toiling, twenties, twenty, waist-up, western european, white coat, work,