HEA|  |01528nam0 2200301   45  
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005|  |1920010814154932
010|  |□d￥0.58
091|  |□aCN□b15045.总2214-有586
100|  |□a20010814d1978    em y0chiy0121    ea
101|0 |□achi
102|  |□aCN□b110000
105|  |□ak   oz  000yy
106|  |□ar
200|10|□a通信明线电话回路交叉计算□Atong xin ming -
   |  |xian dian hua hui lu jiao cha ji suan
210|  |□a北京□c人民邮电出版社□d1978
215|  |□a217页□d19cm
300|  |□a本书附录中有交叉计算举例(共35例)和交叉计算中常用的各-
   |  |项数据表及双线回路传输参数表等资料.
606|  |□a明线载波电话-回路□x计算方法
606|  |□a回路-明线载波电话□x计算方法
690|  |□aTN916.52□v3　
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