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