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- The cubage of the tube is small and high vacuum will be got very quickly. 计算结果表明:二极管的工作场强低于真空闪络场强;
- The whole apparatus operates under high vacuum. 整个装置在高真空下运转。
- high vacuum tube 高真空电子管
- 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。
- 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。
- To preserve(food,for example) by rapid freezing and drying in a high vacuum. 使冷冻干燥通过在高度真空状态下迅速冷冻并干燥来保存(如食物)。
- To preserve(food, for example) by rapid freezing and drying in a high vacuum. 使冷冻干燥通过在高度真空状态下迅速冷冻并干燥来保存(如食物)
- Heat resistance soft vacuum tube avoids damage by hot nozzle. 防热真空软管,免被热吸咀误损。
- In high vacuum state,the damp water in leather can be largly pumped. 由于皮张处于高真空状态,水分抽出量增大,可缩短干燥时间令产量上升;
- 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。
- A vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays. 一束电子被高能量定向以产生x光的包含有金属对象的真空管。
- 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。
- A high vacuum in the fuel tank can cause atmospheric pressure to collapse the tank. 燃油箱内的高真空,会引起大气压力压塌油箱。
- Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps. 可单独作低真空泵用,也可与其它高真空泵组合作前级泵用。