英语单词

ephemeris是什么意思

ephemeris

英 [ɪ'fem(ə)rɪs; -'fiːm-] 美 [ɪ'fɛmərɪs]
  • n. 星历表,历书;短命的东西;日历,日记

英文词源


ephemeris (n.)
table showing predicted positions of heavenly bodies, 1550s, Modern Latin, from Greek ephemeris "diary, journal, calendar," from ephemeros "daily" (see ephemera). The classical plural is ephemerides.

双语例句


1. GPS ephemeris data interpolation, using Lagrange, Newton's Law, which is good information!
GPS星历内插资料, 分别采用拉格朗日, 牛顿法, 是不错的资料!

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2. Using the precise ephemeris and the precise satellite clock correction can realize precise point positioning ( PPP ) .
精密 单点 定位的实质就是利用精密星历和精密卫星钟改正来实现定位.

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3. Until the Eastern Han Dynasty, historian with the ephemeris officer is always unity.
直到东汉, 史官与星历官始终是合一的.

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4. The broadcast ephemeris, which is the basic of satellite navigation, must be precise and real time.
导航卫星广播星历是卫星导航定位的基础, 要求有较高的精度和实时性.

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5. The coordinates of the satellites are got according to the broadcast ephemeris received.
卫星的坐标是根据接收到的广播星历来计算的.

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