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