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Red book : v. 6 fas. 2. Specifications of signalling systems Nos. 4 and 5
出版社：Geneva : ITU, 1985
ISBN：9261021514
出版年：1985
作者：International Telegraph and Telephone Consultative CommitteePlenary Assembly
资源类型：图书
细分类型：西文文献
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  • 出版年：1985