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