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