单词	instruction means
释义	instruction means 教学技术手段
随便看	frequency double klystron frequency double laser frequency doubler frequency doubling frequency doubling attenuation frequency doubling circuit frequency doubling clock frequency doubling crystal frequency doubling effect frequency-doubling gyroklystron frequency doubling laser Frequency Doubling Laser Device frequency doubling perimetry frequency doubling scattering frequency-doubling scattering frequency doubling system frequency doubling technique frequency doubling technology frequency doubling test mode frequency-doubling transponder frequency downconversion frequency down-conversion frequency down convertor frequency drag frequency drift