| 摘 要： | The development of satellitecommunications in China started inthe early 1970's.Total five com-munications satellites have beensuccessfully launched into the geo-stationary orbit.The dual spin sta-bilization bus and C band payloadare used for these satellites and twodifferent configurations are in-volved:the experimental communi-cations satellites STW-1 and STW-2,and the CHINASAT-1 domesticcommunications satellite.Nowthere are three domestic communi-cations satellites in orbit,whichhave worked normally up to now.
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