指示管 meaning in Chinese

index tube
indicator tube
indictor tube
inditorn
inditron

Detail specification for type 31ss51y7 indicator tube
31ss51y7型指示管详细规范
Blank detail specification for oscilloscope tubes and indicator tubes
示波管和指示管空白详细规范
Measurement of the electrical properties of electronic tubes ; method of measurement for cold cathode counting and indicator tubes
电子管电气性能测量.冷阴极记数管和指示管的测量方法
Measurements of the electrical properties of electronic tubes . part 22 : methods of measurement for cold cathode counting and indicator tubes
电子管电性能的测量.第22部分:冷阴极计数管和指示管的测量方法