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DFH Series Communications Satellites

DFH Series Communications Satellites
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摘要 Communications satellite technology has brought the modernization of distance communications into reality, making people much closer than ever. As most communications satellites operate in geostationary orbits with an altitude of 36,000km above the earth, which is a rather high requirement both for the launch vehicle and the satellite, only a few countries have grasped the technology to develop communications satellites (comsats) and launch vehicles sending the comsats into orbit.
作者 Rain
出处 《Aerospace China》 2006年第3期5-7,共3页 中国航天(英文版)

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