FL-19有六根导弹发射管、一套集成的光电目标探测与追踪单元，都装在轻型装甲卡车的后部。
The FL-19 has six single-shot missile tubes with an integral electro-optical (EO) target detection and tracking unit, all mounted on the rear section of an armoured light truck.
用于修饰或说明一科学分支中的概念，其中涉及到自由电子流的运动、发射和性能等，特别是在真空、气体或光电管和特定的导体或半导体中电子的运动。
Pertaining to that branch of science dealing with the motion, emission, and behavior of currents of free electrons, especially in vacuum, gas, or phototubes and special conductors or semiconductors.
光电管：一种固体探测器，有一个对光灵敏的阴极，受到光照时能发射电子，还有一个用于收集所发射电子的阳极。
Photocell: or photoelectric cell, or electric eye; Solid-state device with a photosensitive cathode that emits electrons when illuminated and an anode for collecting the emitted electrons.
详述了近贴聚焦二极管像增强器与低亮度矩阵el显示屏耦合，用光电阴极代替场发射电子，开发出一种新型显示器。
With the proximity focused diode image intensifier coupled to a low luminance el display, and a photocathode instead of a field-emitter, a new photocathode display is developed.
一个光电倍增管，用来探测从镭放射源中随机发射的光子；
A photomultiplier tube, to detect the random photons thatemanate from the radium source.
保持各个光电倍增管的增益一致性对正电子发射断层成像（PET）的质量至为重要。
To make all PMTs' gains identical through auto-adjustment is important for ensuring the PET imaging quality.
保持各个光电倍增管的增益一致性对正电子发射断层成像（PET）的质量至为重要。
To make all PMTs' gains identical through auto-adjustment is important for ensuring the PET imaging quality.
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