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