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