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Black and white negative photograph of Apollo 3 Parachute cluster, flown vertically in 40x80 wind tunnel. - Space exploration photo.
A technician uses a flashlight and a handheld device to inspect industrial piping systems and bolted flanges for potential issues
Food laboratory analysis. Test tubes and fresh products
Cupping or testing the quality of the tea
Man testing soundproof acoustic foam panels with fingers, checking texture and material density for sound absorption qualities in a controlled environment, close-up cropped shot.

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