光学速调管的英文怎么说
光学速调管的英文: adj. 眼睛的,视觉的;光学的 Optical brightener(Optical brightness agent): Synonymous with Optical bleaching agent. Optical depth and optical path are often confused in the literature. A computer that is made of optical fiber and various optical elements optical sighting device A kaleidoscope is an optical toy. n. 极超短波用电子管 The electronmagnetic wave is produced by microwave tubes called klystrons |