以下为句子列表：
英文: China is the 3rd country capable to launch geosynchronous satellite on its own.
中文: 中国是第三个独立发射同步轨道卫星的国家。
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英文: Satellite radio signals are broadcast to Earth by powerful transmitters circling in geosynchronous orbit rather than from conventional radio towers on the ground.
中文: 卫星广播讯号是透过同步卫星上的强力发射器传送到地球上，而非利用地面上的传统广播电塔。
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