VERT 发表于 2025-3-25 06:09:15

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创造性 发表于 2025-3-25 08:11:58

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VEIL 发表于 2025-3-25 12:53:00

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Boycott 发表于 2025-3-25 16:24:36

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outset 发表于 2025-3-25 22:43:13

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无法解释 发表于 2025-3-26 01:31:43

Intelsat: The Tomorrow Organizationrowth of the traffic on the system which has grown an incredible 500 times — from 150 voice channels at year-end 1965 to over 75,000 equivalent voice channels today. Intelsat began the global communications satellite revolution with Early Bird, our first satellite, in 1965. This satellite, with 240

轻快带来危险 发表于 2025-3-26 06:36:05

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brother 发表于 2025-3-26 10:15:34

The European Telecommunications Satellite Organization were non-existent or totally insufficient. The Eutelsat system, however, was not originally conceived to fill telecommunications gaps. In view of the extensive European terrestrial network already in place, the objectives of the system are to satisfy specific European telecommunications requirement

Factual 发表于 2025-3-26 15:26:16

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土坯 发表于 2025-3-26 19:07:29

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查看完整版本: Titlebook: Satellites International Handbook; Joseph N. Pelton,John Howkins Textbook 1987Latest edition Macmillan Publishers Limited 1987 aerospace e