occultation

1. Last November, the occultation took place.: 去年11月，掩星出现了。

2. Discuss the radio occultation technique in details.: 详细描述了无线电掩星的基本技术原理。

3. There are an abundance of the lunar occultation records in ancient China.: 我国古代有相当丰富的月掩星观测记录。

4. The radio occultation technique is a new way to explore the Earth's atmosphere.: 无线电掩星技术是一种探测地球大气的崭新途径。

5. Progresses abroad and at home in GPS radio occultation technique are briefly introduced.: 介绍了国外、国内GPS无线电掩星技术研究进展。

6. The computation with data of certain occultation event is done and the results are analyzed.: 对特定掩星事件的数据进行了反演计算，并对计算结果进行了分析。

7. The noise occultation was significant, and the undertone was the easiest one to be occulted.: 噪音对信号的掩蔽作用显著，其中低音最易被掩蔽。

8. The grazing occultation of the star by the Moon is observed in the zenith at the Earth's equator.: 某星被月球的掩星现象出现在地球赤道的天顶上。

9. If LEO satellite orbit changes, then the GPS occultation events number and distribution will be different.: 不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。

10. If LEO satellite orbit changes, then the GPS occultation event's number and distribution will be different.: 不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。

11. As an extended technique of GNSS radio occultation (RO), the airborne RO sounding has attracted much wider attention.: 作为星载掩星技术的推广，基于飞机平台的无线电掩星技术备受关注。

12. The theory and the procedure of inversion of Earth′s neutral atmospheric parameters with GPS occultation are briefly introduced.: 介绍了利用GPS掩星反演地球中性大气参数的原理。

13. The main content includes the analysis of occultation installations, population evacuation route and the optimization of the network.: 主要包括人防掩蔽工程分析、人口疏散路线分析及疏散网络的最优化分析。

14. The influence of the geography on the height of the occultation is analyzed using data observed by CHAMP occultation, and it is ve...: 从CHAMP掩星观测结果分析，得到了地形对掩星观测高度有重要影响的新结论。

15. From lunar occultation experiments at infrared wavelengths it has been determined that the dust shell can be represented by two components.: 通过红外波段的日掩星观测，已经确定该尘埃壳是由两个成分原组成。

16. The way of remote sensing of terrestrial atmospheric parameters using space borne GPS radio occultation technique is discusses in this paper.: 探讨了空基无线电掩星技术应用于遥感地球大气参数方法，并将该方法编制成资料处理软件。

17. Radio occultation technique can provide the Earth's ionospheric and neutral atmosphere with high accuracy, high vertical resolution and global coverage.: 无线电掩星技术能提供高精度、高垂直分辨率、全球覆盖的地球电离层和中性层大气剖面。

18. The height and the excess phase variations of the occultation caused by water vapor and the temperature variety in the atmosphere boundary layer are studied in details.: 详细研究了大气边界层水汽和温度变化对掩星观测高度、相位时延的影响；

19. Under the assumptions of geometric optics and thin phase screen the retrieval algorithms of amplitude in GPS/LEO occultation technique were listed in this paper, respectively.: 本文在几何光学和薄相位屏的假设下，分别介绍GPS/LEO无线电掩星反演地球大气技术中振幅反演的计算方法。

20. Because the Moon and bright planets wander through the sky near the ecliptic plane, such occultation events are not uncommon, but they are dramatic, especially in telescopic views.: 因为月球和明亮的行星出现在天空中黄道平面附近，这种掩星事件也很平常，但是它们也很富有戏剧性，特别是在望远镜影像里。

21. LEO constellation composed of two or more satellites can improve the time and space resolution and increase the number of occultation events greatly compared with a single LEO satellite.: 与单颗leo卫星相比，由多个卫星组成的LEO星座观测到的掩星事件在时空分辨率和数量上都有很大的提高。

22. A LEO constellation composed of two or more satellites can improve the time and space resolution and increase the number of occultation events greatly compared with a single LEO satellite.: 与单颗leo卫星相比，由多个卫星组成的LEO星座观测到的掩星事件在时空分辨率和数量上都有很大的提高。

23. When the low-Earth orbit (LEO) satellite is low, the contribution of the Total Electron Contents (TEC) above the satellite is not neglectable for inversion of GPS-LEO ionospheric occultation.: 电离层掩星观测中，当低轨卫星(LEO)轨道高度较低时，轨道以上的电离层电子总含量(TEC)对掩星反演的影响不能忽略。

24. When the low-Earth orbit (LEO) satellite is low, the contribution of the Total Electron Contents (TEC) above the satellite is not neglectable for inversion of GPS-LEO ionospheric occultation.: 电离层掩星观测中，当低轨卫星(LEO)轨道高度较低时，轨道以上的电离层电子总含量(TEC)对掩星反演的影响不能忽略。

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