HEA|  |01581nam0 2200325   45  
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005|  |1920010810163145
010|  |□d￥2.15
091|  |□aCN□bK15045.总2431-市339
100|  |□a20010810d1980    em y0chiy0121    ea
101|0 |□achi
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105|  |□ay   z   000yy
106|  |□ar
200|10|□a农村电话交换设备□Anong cun dian hua -
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210|  |□a北京□c人民邮电出版社□d1980
215|  |□a407页□d25cm
300|  |□a邮电中等专业学校试用教材
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690|  |□aTN916.4□v3　
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   |  |ng you dian xue xiao□4编
711|02|□a广东省邮电学校□Aguang dong sheng yo-
   |  |u dian xue xiao□4编
801| 0|□aCN□b上海图书馆
801| 2|□aCN□bNLC
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