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