ChatterBank15 mins ago
dtgk
3 Answers
a source of light especially one that cab be used to measure colour temperature
i?luti?a?t
glass with a high refractive index and a low abbe number between 50 and 55 that is manufactured for use in instruments
optic ?l?l???
i?luti?a?t
glass with a high refractive index and a low abbe number between 50 and 55 that is manufactured for use in instruments
optic ?l?l???
Answers
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