1.
Version B： Proton is positive, election negative and neutron neither.
例7.质子带阳电，电子带阴电，而中子既不带阳电也不带阴电。
2.
A proton has a positive charge and an electron a negative charge, but a neutron has neither.
质子带阳电，电子带阴电，而中子既不带阳电，也不带阴电。
3.
cold cathode lamp
冷阴极电子管,冷阴极灯
4.
Containing or producing the type of electric charge carried by electrons
（电）阴极的，负极的
5.
photoefficiency of photocathode
光电阴极的光电效率
6.
nea photocathode
负电子亲合力光电阴极
7.
electronic valves and tubes
热离子、冷阴极或光阴极电子管、晶体管
8.
He idles away his time watching television.
他看电视虚度光阴。
9.
International Conference on Thermal Tubing
热阴极电子管国际会议
10.
totally reflective interference photocathode
全反射干涉式光电阴极
11.
twin-cathode ray beam
双电子束，双阴极射线束
12.
unbypassed cathode resistor
未加旁路阴极电阻器
13.
cathode-heater insulation resistance
阴极-丝极绝缘电阻
14.
hot-cathode grid glow tube
热阴极栅控辉光放电管
15.
negative electron affinity photocathode
负电子亲和势光阴极
16.
cascode circuit
栅地—阴地放大电路
17.
flopover circuit
阴极耦合多谐振荡电路
18.
Cathode-ray tube(CRT)
电子束管(阴极射线管)