短語(yǔ)詞組短語(yǔ)cathode dark current 陰極暗電流cathode emission current density 陰極發(fā)射電流密度cathode arc current 陰極弧電流cathode angular current intensity 陰極角向發(fā)射電流密度cathode saturation current 陰極飽和電流cathode electric current 陰極電流cathode emissive current 陰極發(fā)射電流cathode pulse current 陰極脈沖電流the cathode dark current 漏電流 返回 cathode current