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