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