... visually impaired 有视觉障碍的; 视觉受损... dim-sighted 视力差的 visually challenged 视觉有缺陷的, 眼睛瞎的...
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年前，人们认为要让有视觉障碍的人(甚至盲人)使用Web是非常可笑的；但今天却实现了。
Ten years ago, the idea that the vision-impaired or even the blind might use the Web seemed ridiculous; today it is a simple reality.
当很多人在等待图片下载的时候，发现图片的ALT标记很有用，同时很多人知道它对有视觉障碍的人士很有用。
ALT tags. A lot of people find an image's ALT tags useful for while they wait for the images to download, and most people know that they are also useful for the visually impaired.
应用表明：该交通信号声讯器安装简单，工作稳定，声讯提示清晰，为有视觉障碍的行人横过马路提供了极大方便。
On-the-spot experiments proves steady operation and easy installation and clear sound prompt of the device which can offer great convenience to the blind pedestrians.
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