适应性：通过UI呈现给用户的网站结构应该有一套替代方法来满足盲人用户的需求。
Adaptability: the Web structure presented to users through the UI should have an alternative approach for blind users.
该模型结合图像处理和听觉显示技术，给盲人用户提供道路方向和障碍物位置等环境信息。
Also it USES auditory display technologies such as sonification, auditory icon to show blind people the environmental information.
许多盲文用户会欢迎一个较小的版本的帕金斯盲人用点字法。
Many braille users would welcome a smaller version of the Perkins braillewriter.
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