词族 · ephemeris
词形变化
英语词源
- 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.
权威例句
- 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!
- 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.
- 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.
- 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.
- 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.