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