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