最后，给出一个利用此电阻层制作场发射聚焦电极的实例。
Finally, an example is given to show the use of the resistive layers in the fabrication of the focus grid.
二是设计出全新的流动成像测量探头，通过设置屏蔽电极和聚焦电流，可以有效克服“软场”效应影响。
Secondly, a new type of flow image logging sensor has been designed, which is set with shielding and focusing electrodes and capable of reducing the influence caused by "soft field" property.
它包括四个部分：限流孔、聚焦环、电极环以及喷嘴。
It comprises of four parts, namely: flow limitation hole, focus ring, electrode ring and nozzle.
电子枪聚焦性能是由电极结构决定的。
The focusing performance of electron gun is decided by the structure of electrodes.
采用图案电极的静电聚焦静电偏转(SS型)摄像管，具有功耗低、扫描频率可变、分辨率高、体积小和重量轻等优点。
All electronic SS type camera tube is characterized by its low expense of power, variable scan frequency, high resolution, small size and light weight.
一种短源距不聚焦的电极系测井设备，安装在极板上紧贴井壁。
An unfocused electrode device with small spacings, mounted on a pad and pressed against the borehole wall.
因此，由于电子发射层接收来自位于其侧 面的阴极电极的电子，所以电子主要从电子发射层表面的边缘部发射， 借此提高电子聚焦性能。
The contacting area of the electron-emitting layer and the cathode electrode is limited to the periphery except a center part on the bottom face of the hole.
因此，由于电子发射层接收来自位于其侧 面的阴极电极的电子，所以电子主要从电子发射层表面的边缘部发射， 借此提高电子聚焦性能。
The contacting area of the electron-emitting layer and the cathode electrode is limited to the periphery except a center part on the bottom face of the hole.
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