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