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