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guide brother / Blind cross the road reminder

guide brother

Dot raised lift control through at the bottom of the elevator, and with traffic lines. By the order of the traffic lights to control the bulge of blind brick and light. When the blind brick all points raised, for the blind to walk form, to their role. When the blind brick is the point of all land, told the blind man no obstacles ahead, feel free to forward them.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

XueFei Liu,
Dalian Nationalities University

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