伽利略卫星导航系统的第一颗实验卫星已经发射到太空。
Currently, The test Satellite GIOVE-A of Galileo Satellite Navigation System has been launched.
木星的伽利略卫星在本影像中可见，就在木星附近几个一丁点大的光点。
Jupiter's Galilean moons are just visible in this photo as tiny pinpricks of light very near the bright planet.
他发现，在不怎么光滑的月球表面上，拥有陨石坑及山脉，并且发现木星最大的几颗卫星，就是现在熟知的伽利略卫星。
When he did, he found craters and mountains on the not-so-smooth lunar surface and discovered the large moons of Jupiter now known as the Galilean moons.
这是一张木星'全家福'的照片，它包括了木星系统的各个组成部分：木星的边缘边的红斑，和木星的称为伽利略卫星的4颗最大的卫星。
This' family portrait, 'a composite of the Jovian system, includes the edge of Jupiter with its Great Red Spot, and Jupiter's four largest moons, known as the Galilean satellites.
总结了伽利略卫星导航系统各信号的信号调制方式、各频段的信号调制体制，特别是BOC调制及ALTBOC调制技术的基本原理。
The modulation of Galileo Satellite Navigation System's signal is analyzed in this paper, especially, the basic principle of the BOC and ALTBOC is analyzed in detail.
伽利略对木星卫星的观察表明，托勒密关于天体运动的理论是错误的。
Galileo's observations of Jupiter's satellites showed that the Ptolemaic theory of the motion of celestial bodies is false.
由于哥白尼的行星运动理论与托勒密的解释不一致，伽利略对木星卫星的观察证明了哥白尼理论的正确性。
Since the Copernican theory of planetary motion is inconsistent with the Ptolemaic account, Galileo's observations of Jupiter's satellites proved the truth of the Copernican theory.
1609年夏天，伽利略曾第一次用它观察了月球，之后他还观察到了木星的卫星和太阳黑子。
Using it, he first observed the moon in the fall of 1609, then the moons of Jupiter, and sunspots.
NASA的伽利略号太空船在1996年和1997年低空飞越这颗木星的第二大卫星，他们发现木卫四的磁场在不断变化，这意味着存在电流。
NASA's Galileo spacecraft did a fly-by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.
由于伽利略用的是20倍的望远镜，而且他眼睛的状况也很糟糕，他很可能把土星的气环搞错了，并因此得出结论-土星是由一个行星和两个卫星组成的。
With his 20-power telescope and with his eyes in bad shape he might have mistaken Saturn's gaseous ring to surmise that it was formed of one planet with two moons as satellites.
四百年前，当伽利略将自制的天文望远镜对向夜空时，他发现了木星的四个卫星，从而证实其它行星也会有自己的卫星。
Four hundred years ago, Galileo raised his homemade spyglass to the sky and spotted four of Jupiter's moons, revealing that other planets could have their own lunar companions.
2001年，伽利略号探测到一颗小行星曾经撞击过卫星，形成了瓦尔哈拉撞击盆地。
In 2001, Galileo detected that an asteroid had struck the moon, forming the Valhalla impact basin.
测试活动的结果表明，GIOVE-B运转良好，并且已经将“伽利略”卫星导航计划所需的多种技术有效整合。
The results suggest that GIOVE-B is operating well and in turn validates technologies integral to the EU-funded Galileo Satellite Navigation project.
在这张来自伽利略航天器的彩色合成照片中我们可以看到，在木星这颗遍布火山的卫星木卫一上，正发生着两场硫磺喷发。伽利略航天器从1995年至2003年一直环绕着木星运行。
Two sulfurous eruptions are visible on Jupiter's volcanic moon IO in this color composite image from the robotic Galileo spacecraft that orbited Jupiter from 1995 to 2003.
“伽利略”计划是欧盟为了打破美国的GPS在卫星导航定位这一领域的垄断而启动的迄今为止欧洲将要开发的最重要的航天计划。
To break the monopoly of GPS on the field of Global Location and Navigation of Satellite, "Galileo"plan is put forward by Europe Union, which is the foremost space plan so far.
400年前，伽利略将他自制的小望远镜对准星空，发现了木星的四颗卫星，我们这才知道其他行星也有自己的卫星。
Four hundred years ago, Galileo raised his homemade spyglass to the sky and spotted four of Jupiter's moons, revealing that other planets could have their own lunar companions.
今年距离伽利略发现木星的四颗大卫星整整400年，突然间人类发现了数倍于其数量的卫星。
This year it will be four centuries since Galileo discovered Jupiter's four large satellites, at a stroke quintupling the number of moons then known to humanity.
木星的四个主要卫星也称伽利略星非常容易观测到。
Jupiter's four major moons - called the Galilean moons - are pretty easy to see.
如同“伽利略”轨道器首次在木星光环中寻找小卫星一样，“新视野”还会对木星光环进行观察。
New Horizons will also be looking at Jupiter's rings, first detected by the orbiter Galileo, searching for small moons orbiting inside them.
“伽利略”计划是欧盟为了打破美国的GPS在卫星导航定位这一领域的垄断而启动的迄今为止欧洲将要开发的最重要的航天计划。
To break the monopoly of GPS on the field of Global Location and Navigation of Satellite, "Galileo" plan is put forward by European Union, which is the foremost space plan so far.
这幅照片由太空探测器伽利略号离小行星2,400公里处拍摄，依达与其卫星达克图清晰可见。
This image taken by the space probe Galileo at a distance of 2, 400 km captured IDA and its tiny companion, dactyl.
系统可传送与诸如gps、GLONAS、伽利略和罗盘卫星信号等GNSS信号对应的数字信号。
The system may transmit digital signals corresponding to GNSS signals such as GPS, GLONAS, Galileo and Compass satellite signals.
对于那些把木星的卫星说成是伽利略的小望远镜的产物的人们，我们或许是能够原谅的。
One of the four brightest satellites of Jupiter and the seventh in distance from the planet. It was originally sighted by Galileo.
对于那些把木星的卫星说成是伽利略的小望远镜的产物的人们，我们或许是能够原谅的。
One of the four brightest satellites of Jupiter and the seventh in distance from the planet. It was originally sighted by Galileo.
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