The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.
第一个放置在对地静止
卫
是1963年美国航
暨太总署发射同步传输卫.
The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.
第一个放置在对地静止卫是1963年美国航暨太总署发射同步传输卫.
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