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