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HEA| |00670nam0 2200253 45 000| |142245 001| |97002820 011| |▼a0147-7439 092| |▼aCN▼b734B0032 100| |▼a19920916a19779999m y0engy0120 ba 101|0 |▼aeng 102| |▼aUSA 110| |▼aafa 0uu0 200|10|▼aSatellite communications 207| 0|▼av.1 (1977)- 210| |▼aDenver, Colo.▼cCardiff Publishing Co. 530|0 |▼aSatellite communications 531| |▼aSatell. commun. 541|1 |▼a(美)卫星通信 676| |▼a621.38/0422 690| |▼aTN91 905| |▼a801▼b000500382198▼d734 905| |▼a801▼b000500382198▼b000500163085▼d734 905| |▼a801▼b000500382198▼b000500163085▼d734
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