clothing
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- time-averaged shadow-moire method
- optical deformation
- holographic gratings
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- frequency summing
- diatomic roto
- optical harmonic generation
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- visible emissivity
- infra-red beam folower
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- upper state relaxation
- optical head controllers,control ics/modules
- mode pattern
- filters
- astrospectrograph camera
- multilongitudianl-mode laser
- chronophotography
- metacrystalline
- intensifying screen