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