pseudo optical band

例句：

1. 1. The pseudooptical band is a region in the electromagnetic spectrum where light does not travel.
   伪光学带是电磁谱中光不传播的区域。
2. 2. In this pseudo opticalband, the electrons are moving athigh speeds.
   在这个伪光学带中，电子以高速移动。
3. 3. The pseudo optical bandis used to detect and analyzethe properties of materials.
   伪光学带用于检测和分析材料的性质。