盲文
盲文（法语：Braille）又叫点字、盲字、凸字，是盲人使用个文字，由法国人路易·布莱叶发明，透过盲文板、盲文机、盲文打印机等拉纸张上制作出弗同组合个凸点而组成。
盲文个基本单位是长方形个盲符，伊有位置固定个六個点，每個点好凸出，也好弗凸出来，箇能一個盲符拢总有64种可能。
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