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