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