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

M型真空管  vacuum tube; M type

O型真空管  vacuum tube; Q type

α管真空计  alphatron gauge

白炽真空管  bright emitter valve

白热真空管  bright emitter valve

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

傍热式真空管  heater type [vacuum] tube

傍势式真空管  heater type tube

变频真空管  frequency converter tube

玻璃真空管  glass evacuated tube

玻璃真空管集热器  glass evacuated tube solar collector

测量真空管参数的电桥  vacuum-tube bridge

剎车真空管  brake boost vacuum tube

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

抽真空管道  vacuum pipelines

储热式玻璃-金属真空管  thermal storage glass-metal evacuated solar collector

磁控管真空计  magnetron vacuum gage

倒用真空管  inverted vacuum tube