我们需要一个契机“只有社会效益而缺乏经济效益的产品,没有厂家愿意做。”盲文学习机的发明人之一刘海霞这样对记者说。刘海霞是一位盲人姑娘,曾经,她所在的河北省景县的6000多盲人中,只有她一个人懂盲文。刘海霞与另一位发明人共同研制的盲文学习机,让盲人不出家门就可以自学掌握。这样一个花费数年时间,耗费近百万,淘汰了无数台原型样机的盲文学习 We need a turning point “Only social benefits and lack of economic benefits of the product, no manufacturers are willing to do. ” Braille learning machine, one of the inventors Liu Haixia told reporters. Liu Haixia is a blind girl. Once, she was among the more than 6,000 blind people in King County, Hebei Province, where she knew only Braille. Liu Haixia and another inventor jointly developed braille learning machine, so that blind people can not get out of their homes can learn to master. It took a few years, nearly a million dollars, to eliminate countless prototypes of braille learning