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