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