真空管 meaning in English
vacuum tube; vacuum valve; valve
◇真空管电压表 valve voltmeter (vv)
Examples
- No vacuum or picture tubes were broken .
真空管或显影管都未破碎。 - Transistors have many advantages over the old-fashioned vacuumtube valves .
与老式真空管相比，晶体管具有许多优点。 - They can be used in devices for which vacuum tube valves were unsuitable, such as in hearing aids designed to fit into the ear .
它们能用在不宜采用真空管的装置上，例如能用在放在耳朵内的助听器里。 - Manufacturing and sales of piping joints and valves
配管接口及真空管的制造销售 - Ol , gvt box ecc88 6dj8 siemens , wg . ,
6sl7gt美国sylvania厂制,黑屏1960年代古典真空管