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