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用凿孔把字母信息在卡片上编码的种方式(以美国发明人赫尔曼·霍尔瑞 Herman Hollerith 1860-1929)

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相似单词


hollander, Hollandia, hollandite, Hollands, holler, Hollerith, Hollerith card, Hollinacea, Hollinidae, hollocellulose,