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