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