然而卡洛·康泰迪说，用GPS人造卫星来同步时钟，远远达不到这个准确度，这是因为GPS人造卫星的信号本身也受到重力时间膨胀效应的影响。

But Contaldi says that GPS synchronization is not nearly that accurate, because GPS satellite signals are themselves subject to gravitational time dilation.

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按照原计划，OCO将和其他五颗卫星构成链状的A字形，那五颗卫星分别用于监测臭氧、二氧化氮、甲烷以及其他的温室气体，并且在监测时间上它们与oco同步。

The plan was for OCO's measurements to be synchronised with an analysis of ozone, nitrogen dioxide, methane and other greenhouse gases by the rest of the fleet.

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针对卫星导航系统站间时间同步的需求，系统地总结了传统的时间传递方法。

With the demand of time synchronization between ground stations of satellite navigation system, the traditional time transfer methods are summarized systematically.

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