名词
中文翻译：计划定位指示方法
同义词：
['planned position indicator (PPI)', 'planned positioning system (PPS)']
例句：
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1. This method is used to determine the optimal position for a satellite in space.
这种方法用于确定卫星在太空中的最佳位置。
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2.The PPI system was designed to improve the accuracy of satellite navigation.
PPI系统旨在提高卫星导航的准确性。
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3. The PPS has been widely adopted by many countries for its high efficiency and reliability.
PPS因其高效性和可靠性而被许多国家广泛采用。