参考例句

1. 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。

2. a vacuum tube that amplifies a flow of electrons.

   能够增强电子流量的真空管。

3. 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。

4. A specific vacuum tube which converts light into electrical energy.

   把光转换成电能的一种真空管。

5. battery used to heat the filaments of a vacuum tube .

   能够把真空管的细丝加热的电池。

6. 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。

7. an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube .

   真空电子管的正负极之间的能够控制电子通过管流动的电极。

8. a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback.

   带有真空管正极并连接栅格以提供反馈的一系列小线圈。

9. a small vacuum tube ; used at high frequencies.

   小的真空管；在高频状态下应用。

10. "It was the first triode vacuum tube , incorporating a control grid as well as a cathode and an anode."

    其是由一个控制栅极、一个阴极和一个阳极组合起来的真空管。