guest Moderator 管理成员 注册 2002-10-07 消息 402,318 荣誉分数 76 声望点数 0 2016-06-22 #1 A handheld device to help people who are visually impaired navigate pedestrian crosswalks is just one of the new products Canadian companies will test in Ottawa as part of a pilot project introduced by the city. 查看原文...
A handheld device to help people who are visually impaired navigate pedestrian crosswalks is just one of the new products Canadian companies will test in Ottawa as part of a pilot project introduced by the city. 查看原文...
