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