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Spherometer
01
球面测量仪, 球面计
a measuring tool used to determine the roundness of a curved surface
Example
To pass inspection, the ball bearings needed a spherometer reading within tight tolerances for its spherical shape and diameter.
The spherometer is an important instrument for testing the geometry and sphericalness of balls, bearings and other spherical components.
Opticians check the curve of contact lenses with a spherometer to ensure the proper prescription sphere is matched.
