cathode heater assembly 阴极加热器

cathode heater tube 旁热式电子管

cathode-heater 阴极加热器

heater cathode 旁热式阴极 ; 直热式阴极

cathode e heater 阴极加热器

heater-cathode leakage 灯丝阴极间漏泄

heater-cathode sufferable voltage 热丝与阴极间耐压

heater-cathode current [电子] 热丝与阴极间电流

heater-cathode connection 直热阴极接线