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