| 术语 | phosphor |
| 释义 | phosphor 荧光粉 The fluorescent material which coats the screen of a CRT. When the electron beam strikes the phosphor its electrons become excited and move to a higher energy level. When the electrons return to their original level they give off thelight that forms the display on the screen. 涂在阴极射线管(CRT)屏幕上的荧光材料。当电子束打到它上面,激活它的电子到较高的能级上, 等电子返回到它原来的能级时便发出光,使屏幕上显示出图象。 |
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