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- 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。
- An electron tube or a vacuum tube. 电子管或真空管。
- Lee de Forest invents the vacuum tube. 李.;德福雷斯特发明电子管。
- Based on vacuum tube slight variation equivalent circuit analysis, four kinds of output circuits used in vacuum tube headphone amplifier generally are analyzed. 摘要以电子管微变等效电路分析为基础，分析了在电子管耳机放大器中常用的4种输出级电路。
- A specific vacuum tube which converts light into electrical energy. 把光转换成电能的一种真空管。
- 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。
- VTA? Vacuum Tube Amplifier? 电子管放大器?
- The latest launch of SUTHERLAND,the TM-S1 vacuum tube car borne power amplifier, is another choice product elaborated for acoustics aficionados and another example in sursuit of sweet, warm, real and natural sound. 司德朗）公司最新巨献：TM-S1真空管车载功放机，是专为音响发烧友，胆迷精雕细啄的又一铭器，是追求甜润、温暖、真实自然声音的又一典范。
- X-ray emission from vacuum tubes of television and video display units are also sources of artificial radiation. 其他人工辐射来源包括电视机及视象显示器等,它们的真空管会发放X射线。
- 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。
- The Nonlinear Design of Fuze Video Amplifier 引信视频放大器的非线性设计
- 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。
- shunt compensated video amplifier 并联补偿视频放大器
- 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。
- shunt peaked compensated video amplifier 并联峰值补偿视频放大器
