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