Primary standard piston cylinders. These piston cylinders are standard sizes against which all other piston cylinders are measured. Photographed at th

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Primary standard piston cylinders. These piston cylinders are standard sizes against which all other piston cylinders are measured. Photographed at the National Physical Laboratory, Teddington, UK.

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Size: 5982px × 4689px
Photo credit: © ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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