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