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