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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。
- 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。
- The device is implanted surgically and requires two electrodes. 植入这个装置要做外科手术,并要有两个电极。
- 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。
- Vacuum tubes require DC voltage sources as well. 真空电子管也要求以直流电压为电源。
- 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。
- consumable electrode vacuum arc furnace 自耗电极真空电弧炉
- It consists of two electrodes, one inside the other, separated by an insulator. 它由两个电极组成，一个在另一个的内部，由绝缘体分开。
- 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。
- consumable electrode vacuum furnace 真空自耗炉
- Put two electrode into U-tube, and electrify 把电极放入型管的两边,通电
- Two electrodes, or terminals, separate an electrolyte -- a chemical compound that generates negative ions. 两个电极或者说终端接头，隔开电解质--一种能产生负离子的化学混合物。
- 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。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
