您要查找的是不是：
- An electron tube or a vacuum tube. 电子管或真空管。
- Diangong Heat tube Vacuum tube heat collector. 电工太阳能热管真空管集热器.
- Diangong Solar vacuum tube heat collector. 电工太阳能真空管集热器.
- Not any air gets into the vacuum tube. 没有空气能进入真空管。
- John Ambrose Fleming invents the vacuum tube. 1904年的今天，约翰·安布鲁斯·弗莱明发明了真空管。
- Lee de Forest invents the vacuum tube. 李.;德福雷斯特发明电子管。
- A specific vacuum tube which converts light into electrical energy. 把光转换成电能的一种真空管。
- Cathode-ray tube (CRT): Vacuum tube that produces images when its phosphorescent surface is struck by electron Beams. 阴极射线管:一种真空管,当电子束打在其磷光表面会产生影像。
- Cathode-ray tube (CRT) : Vacuum tube that produces images when its phosphorescent surface is struck by electron Beams. 阴极射线管:一种真空管,当电子束打在其磷光表面会产生影像。
- Heat resistance soft vacuum tube avoids damage by hot nozzle. 防热真空软管,免被热吸咀误损。
- Battery used to maintain the grid potential in a vacuum tube. 能够保持潜藏在真空管内的栅格的电池。
- Vacuum tubes require DC voltage sources as well. 真空电子管也要求以直流电压为电源。
- Vacuum tube amplifiers used the first time in coast-to-coast telco circuits. 真空管放大器首次用于大西洋岸至太平洋岸的电信电路中。
- In this paper,the developing course of semiconductor electron device is simply retro-spected,which mainly includes the vacuum tube,solid transistor and nanoelectron device. 简要回顾了半导体电子器件由真空电子管到固体晶体管,直至纳米电子器件的发展历程。
- The ancestor of these miniature electronic devices is the vacuum tube. 这些微型电子装置的鼻祖就是真空管。
- The branch of electronics dealing with thermionic phenomena (especially thermionic vacuum tubes). 电子学中有关热离子现象(特别是热离子真空管)的分支。
- Or to reduce cost, add bassoon span of purpose, reduce vacuum tube amount. 或者为了降低成本，有意增大管间距，减少真空管数量。
- All glass vacuum tubes are the key component of solar collectors. 全玻璃真空管是太阳能集热器中的关键部分。
- Mainly products: Heat shrinkable tube、Electronic wire、 Flexiable flat cable、 Wiring accessories and Teflon ETC. 其主推的产品有：热缩套管、电子线、电子软排线、配线器材、铁氟龙等。
- Battery for supplying a constant positive voltage to the plate of a vacuum tube. 能够产生真空管金属板稳定负电压的电池。
