“precise ephemeris service”的概念、定义、翻译、参考文献-科学参考

单词	precise ephemeris service
释义	precise ephemeris service Encyclopedia 工学GNSS精密定位释 precise ephemeris service精密星历服务利用卫星系统地面控制站或地面跟踪站观测数据，按照一定的数学方法计算的卫星星历，对外提供精密定位服务。
随便看	social inequality social inference social influence social influence of museum Social Informatics Social information social information social information analysis social information communication Social information management engineering Social information management system Social Information Processing social information processing model social information processing theory Social information security protection Social information sharing mechanism social information systems Social Informatization social informatization social infrastructure Social inherit and supersede social insect social institution social insurance social insurance agency

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