The rocket carrying the satellite lifted off from Tanegashima Space Center in southern Japan early Friday afternoon, following a one-day weather delay.

由于之前的天气问题，运载火箭延迟一天于周五下午在南日本的种子岛航天中心将卫星送入太空。

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Since the speed of light is well known, any delay in receiving the satellite`s signal can be converted into a distance.

由于光速广为人知，接受卫星信号时的任何时间迟缓都能折算出距离的远近。

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In mobile satellite networks, for the aim of shortening handover delay while using network resource efficiently, a proper handover scheme should be given.

对于移动卫星网络，合理的星地链路切换方案需要在保证最小切换时延的同时，能够最优地使用网络资源。

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