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