查询词典 Leo

First, the satellite constellation topology and the satellite network are introduced in this paper. A comprehensive overview on LEO satellite network routing algorithm research status is given, including the comparisons of several major LEO satellite network routing protocols like DT-DVTR(Discrete Time Dynamic Virtual Topology Routing)、AR and FSA.

本文首先介绍了卫星星座的拓扑结构和卫星网络的组网方式，对LEO卫星网络路由算法研究现状进行了综述，对主要的几种LEO卫星网络路由协议如DT-DVTRDiscrete Time Dynamic Virtual Topology Routin(来源：554fABC论文网www.abclunwen.comg、AR和FSA等进行了详细的比较并论述了它们具有的优点和存在的缺点。

The outer space including LEO satellite orbits is divided into some three-dimensional cells which are moving on even velocity.The cells merge into clusters according to density of LEO satellites.

LEO卫星轨道所处的外层空间被划分成移动的分区，根据结点的密度分区合并为簇，然后在簇内根据组合加权方式选择一个MEO结点作为簇首。

The results can be referenced when determining the parameters of LEO-LEO occultation satellites.

该研究结果对LEO-LEO掩星探测卫星的轨道设计有一定的参考作用。

The character of LEO-LEO satellite occultation events is well discussed in this paper. The impact of satellite orbit parameters on the number and distribution of occultation events are discussed based on simulation.

文章对LEO-LEO卫星掩星事件的特性进行了深入讨论，通过仿真计算定量讨论了轨道参数对掩星事件次数及分布的影响。

My favorite Leo, since I have you .my heart has a dependent and a kind of sustenance, my life has its hope. Even if I am in face of the most difficult and sorrowful things ,I believe that I can lost everything ,I will still have Leo .

我最爱的Leo，自从有了你，生命的希望不再失落，我的心就有了一个依靠，一种寄托，即使遇到再困难伤心的事，我都相信，我可以失去一切，但我还有Leo，是会爱我的。

A LEO constellation composed of two or more satel- lites 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。

Finally, the comparison analysis of the performance evaluation results is given as well. Some conclusions, which is the performance comparison of the single-layered LEO satellite network and the double- layered LEO/MEO satellite network's with the variation of network load, are derived thereby.

最后，对两个模型的性能评价结果进行了对比分析，得出了有关在网络负载变化情况下LEO单层卫星网络和LEO/MEO双层卫星网络的性能优劣比较结论。

The performance evaluation on a single-layered LEO satellite network and a double-layered LEO/MEO satellite network is carried out by Stochastic Petri Net model-based analysis.

基于随机Petri网模型方法，分别对LEO单层卫星网络和LEO/MEO双层卫星网络进行了性能分析。

The following conclusions are drawn. 1 The orbit parameters that have relatively greater influence on the number and latitudinal distribution of annual occultation events are orbit inclination, orbit height, Right Ascension of Ascending Node and Argument of Perigee in turn. All four parameters have little impact on the longitudinal distribution of annual occultation events. 2 The orbit inclination of Transmitting Satellite and Receiving Satellite impacts both LEO－LEO occultation events number and their latitudinal distribution most. The number of occultation events reaches the maximum as the sum of the two inclination angles nears 180 degrees. The one that far away from 90 degrees of the two inclination angles determines the latitude range of the occultation events. 3 LEO－LEO occultation events number reaches a maximum when the heights of TS and RS are the same, and it reaches the maximum when the heights of TS and RS are 600 km . 4 The RAAN of TS and RS has a great influence on the LEO－LEO occultation number, but has little influence on occultation distribution.

结果指出：1对一年掩星事件数量及其纬度分布影响大的轨道参数依次是轨道倾角、轨道高度、升交点赤经和近地点角距；而这些参数对一年掩星事件的经度分布影响都不大；2发射卫星和接收卫星倾角之间的相互关系对掩星事件数量和纬度分布影响最大，两卫星倾角接近互补时掩星事件最多，两颗LEO卫星中与90°相差较大的倾角决定了LEO－LEO掩星事件的纬度分布范围；3发射卫星和接收卫星处于同一轨道高度时，LEO－LEO掩星事件数取得极大值，发射卫星和接收卫星都采用600 km的轨道高度，一年LEO－LEO掩星事件数最多；4 发射卫星和接收卫星升交点赤经的相互关系对LEO－LEO掩星事件数量影响很大，发射卫星和接收卫星升交点赤经之差为120°或240°时掩星事件数量最多，RAAN对掩星事件纬度和经度分布影响不大；5近地点角距对掩星事件数量和分布影响都不大。

And it came to pass sometimes that when Brother Leo was removing the bandage from the wound in the side, St Francis, because of the pain caused thereby, would lay his hand on Brother Leo's breast, and at the touch of that holy hand Brother Leo felt such sweetness of devotion as well-nigh made him to fall fainting to the ground.

后来， 有时候，当Leo弟兄正在帮助他从伤口处解下绷带时，圣方济各因为疼痛，把手搭在Leo的胸前，被圣方济各的手接触到的感觉如此甜蜜，以致于差点让他昏倒在地上。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。