HEA|  |01377nam0 2200313   45  
001|  |0149177510
005|  |1920010929164227
010|  |□d￥0.21
091|  |□aCN□b15045.总2759-有5317
100|  |□a20010816d1983    em y0chiy0121    ea
101|0 |□achi
102|  |□aCN□b110000
105|  |□ay   z   000yy
106|  |□ar
200|10|□a数字通信□Ashu zi tong xin□f李文海编著
210|  |□a北京□c人民邮电出版社□d1983
215|  |□a53页□d19cm
225|2 |□a通信技术业务知识丛书
410| 0|□120010□a通信技术业务知识丛书
606|  |□a数字通信
690|  |□aTN919
690|  |□aTN914.3□v3　
701| 0|□a李文海□Ali wen hai□4编著
801| 2|□aCN□bMT
905|  |□aMT□fTN919/21□b0222722□t10718-
   |  |89□kwe□b0222723□t1071890□kwe□b-
   |  |0695203□t1071887□kj□b0695243□t1071888□kj
908|  |□a0222722□b444372□cMT□d0□e2□fT-
   |  |N919/21□gMT□hyt□i□j0.21□k□l1□-
   |  |m□n□o平装□p1071889□q2002-06-10□r-
   |  |0.21□t□u□v999_CN01□w2002-06-10□y订购□zyt
908|  |□a0222723□b444372□cMT□d0□e2□fT-
   |  |N919/21□gMT□hyt□i□j0.21□k□l1□-
   |  |m□n□o平装□p1071890□q2002-06-10□r-
   |  |0.21□t□u□v999_CN01□w2002-06-10□y订购□zyt
908|  |□aM0222722□b1900080611□cMT□d□e-
   |  |2□fTN919/21□gMT□hyt□i□j.21□k□-
   |  |l1□m□n□o平装□p□q2002-06-10□r□t□u-
   |  |□v999_CN01□w2002-06-10□y□zyt
908|  |□aM0222723□b1900080611□cMT□d□e-
   |  |2□fTN919/21□gMT□hyt□i□j.21□k□-
   |  |l1□m□n□o平装□p□q2002-06-10□r□t□u-
   |  |□v999_CN01□w2002-06-10□y□zyt