two-way time transfer 双向时间比对
satellite two-way time transfer 卫星双向时间传递
Uncorrelative two-way time transfer way 非相关双向时间传递法
two-way optic time transfer 双向比对法
two-way satellite time transfer 卫星双向时间比对
ship-shore two-way satellite time transfer 岸船卫星双向时间比对
There are two primary methods of time dissemination around the world: two-way satellite time transfer_(TWSTT) and common-view Global Position System_(GPS) time transfer.
现行的高精度远距离时间传递方式主要有GPS共视法和双向卫星时间传递技术（TWSTT）。
One of the important factors affecting the accuracy of two-way satellite time and frequency transfer (TWSTFT) is the satellite motion.
影响双向卫星时间频率比对(TWSTFT)准确度的一个重要因素是卫星的运动。
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