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