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