XHTML 2在XHTML的基础上添加更丰富的结构，使之成为一种可用于创建和存储内容的格式，而并不单单是能够把内容传递给浏览器。
XHTML 2 adds enough structural sophistication to XHTML to make it a viable format to create and store content, not just to deliver it to browsers.
改进后的激光图形显示系统的试验结果表明，多通道激光图形显示系统提高了图形质量，使显示更便利，内容更丰富。
The experiments on the improved laser graphical display system demonstrated that this multi-channel laser graphics display system is easier to use and the image quality and content are improved.
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