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作者：Sameh Sarhan and Chris Richardson美国国家半导体公司(TI)现阶段节能已经成为一种硬性的要求，不是一种选择，而其中一部分需要采用环保绿色的方式去实现节能。对于照明...

玩过激光的同志都知道，关于激光的光束模式，常见的是TEM00，实际上这个的模式还有很多：关于这些的定义：激光束横截面上光强的分布情况称为激光横模。一般笼统地把横模当作激光模式。用符号TEMmn表示各种...

一台大型复印机，久了，拆洗一下，拍了一些照片，简单介绍一下模拟复印机的原理。由于疏忽，忘记拍光导体鼓（就是传说中的硒鼓）了，下次换刮板的时候补上。目前，复印机已经基本数字化，简单一点而言，就是先扫描，...

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