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to phrases
numerical aperture
earth.sc., industr., construct. numerische Apertur
microsc. Numerische Apertur
opt. numerische Apertur (the product of the refractive index of the medium between the object and the lens and the sine of half the angle subtended by the lens diameter at the object); NA m (the product of the refractive index of the medium between the object and the lens and the sine of half the angle subtended by the lens diameter at the object)
numeric aperture
nat.sc. numerische Apertur
 English thesaurus
Numerical Aperture
abbr., scottish NA
numerical aperture: 11 phrases in 7 subjects
Antennas and waveguides2
Communications1
Electronics3
Industry1
Information technology1
Microelectronics1
Optics branch of physics2