cathoderayn.阴极射线cathoden.阴极cathode coating impedance阴极敷层阻抗cathode-bias resistance阴极偏压电阻cathode-coupled clipper阴极耦合限幅器cathode coupled amplifier阴极耦合放大器cathode active coefficient阴极有效系数cathode coupled oscillator阴极耦合式振荡器cathode-ray oscilloscopen.阴极射线示波管；阴极射线示波器cathode-ray tube circuit阴极射线管电路cathode sputtering process阴极溅射沉积法cathode-ray-tube scale阴极射线管的标度