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