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