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