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