books optical or optical axis
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# optical axis
# optical axis surface
# main optical axis
# Optical fiber or optical fiber
# Optical interference and optical fibers
# Optical electronics light emitter
# Optical optics
# How does the earth rotate on its axis?
# Optical electronics and optical fiber technology
# axis of sight
# The nature of light and optical instruments
# Reflection of light, optical physics
# Optical physics of light reflection
# Optical and axial corrective alternative
# Axis country
# horizontal axis
# Axis of Evil
# X-axis
# Y-axis
# Earth's axis
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محور بصري أو ضوئي (Info)
محور بصري أو ضوئي:- محور في البلورات، باستثناء بلورات النظامين المكعبي و الرباعي. لايتم على امتداده انكسار مزدوج للضوء (المعجم الموحد لمصطلحات الزلازل)
