However, being so distant, GEOs have a problem of transmission delay on delivering interactive services. The terminals must be very powerful and expensive, also, ground antennas are very large.
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释义
然而;由于同步卫星距离地表太遥远;因此在传送互动式服务时;会发生传输延迟的问题.;而且;接收站必须是很高效能且昂贵的;同时地面的天线也要很宽大
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