“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	feeding strategy feeding time feeding trial feeding trough feeding variation of fish feeding water pipe of boiler feeding way feeding zone feed intake feed lot feed machinery feed manufacture feed mechanism feed metering device feed mildew feed mixer feed-point resistance feed preparation machine feed preservative feed preservatives feed probiotic feed processing and modulation technology feed rate feed regulations feed safety and hygiene

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