α管真空计  alphatron gauge

板极检波真空管电压表  plate-detection type vacuum tube voltmeter

超短波真空管电压表  ultra-short wave vacuum tube voltmeter

磁控管真空计  magnetron vacuum gage

电真空计  electric vacuum-meter

放电真空计  discharge gauge

光电真空管  phototube

气体放电真空计  gas discharge ga(u)ge; gas-discharge gauge

热管真空管  heat pipe vacuum tube; heat-pipe vacuum tubular

热阴极磁控管真空计  hot cathode magnetron gage

无线电真空管  radio tube; radio valve

真空管电铎  vacuum-bube relay

真空管电桥  vacuum-tube bridge

真空管电压表  vacuum tube voltmeter; electron tube voltmeter; tube voltmeter; vacuum-tube voltmeter; VTVM

真空管电压计  vacuum-tube voltmeter; vacuum tube voltmeter; thermionic voltmeter; VTVM

电位计电阻  potentiometer resistance

电位计位置  potentiometer position

方位电位计  bearing potentiometer

精密光电电位计  precision photo-electric potentiometer