three-speed gear
相关英语词汇推荐
- spatially bound function
- laser
- diffuse reflectance light
- transit-time lidar velocimeter
- optical second harmonic generation
- pseudocontinuum
- aberration blur circle
- collisionless multiple-photon laser excitation
- spherical aberration
- astro-compass
- time-resolved interference spectroscopy
- beamsplitting blocks
- self-sagging
- Infrared spectroscopy
- Sonnar lens
- plastic-base mirror
- tracking laser radar
- checking
- Acoustooptic Bragg diffraction
- metal lens