HEA|  |00738nam0 2200265   45  
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001|  |97001699
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011|  |▼a0305-3601
092|  |▼aCN▼b734C0007
100|  |▼a19920916a19749999m  y0engy0120    ba
101|0 |▼aeng
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110|  |▼aaha    0uu0
200|10|▼aCommunication & broadcasting
207| 0|▼av.1 (1974)-
210|  |▼aChelmsford▼cMarconi Co.
436| 1|▼1011  ▼a0032-2334▼15301 ▼aPoi-
   |  |nt-to-point communications
436| 1|▼1011  ▼a0038-1829▼15301 ▼aSou-
   |  |nd and vision broadcasting
436| 1|▼15301 ▼aCommunication systems
530|0 |▼aCommunication & broadcasting
531|  |▼aCommun. broadcast.
541|1 |▼a（英）通信与广播
690|  |▼aTN
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