Abbe refractometer standard block and valuing method thereof
The invention discloses an Abbe refractometer standard block and a valuing method thereof, and belongs to the technical field of testing. The Abbe refractometer standard block is made of an optical glass material with a refractive index of 1.3-1.7; thestandard block is cylindrical, and comprises at...
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Format: | Patent |
Sprache: | chi ; eng |
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