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