地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
太阳系最大卫星的长像如何？
有两大卫星星系环绕着我们的银河系转动。
Our Milky Way galaxy has two large satellite galaxies orbiting it.
有一个光环包围着土卫六，土卫六是土星的最大卫星。
而和土星同样是巨大气质行星的木星却有4颗大卫星。
But Saturn's fellow gas giant planet Jupiter has four big moons.
直至1801年，最大卫星——谷神星的发现，才填平了这个空白。
It was only in 1801 with the discovery of Ceres, the largest of the asteroids, that this gap was neatly plugged.
土卫五，土星的大卫星之一，被抓拍到经过土卫十一，土星的一颗小卫星。
Rhea, one of Saturn's larger moons, was caught passing Epimetheus, one of Saturn's smaller moons.
Dish是仅次于DirecTV的第二大卫星媒介，拥有1400万左右的用户。
Dish is the second-largest satellite carrier behind DirecTV, with about 14 million customers.
年，比罗比詹，犹太自治州，大卫星被潦草地涂写在破旧的公寓窗户上。
RUSSIA. Birobidzhan, Jewish Autonomous Region. 1999. The Star of David is scribbled on a broken apartment block window.
CZ - 2c是适用于发射低轨道、质量较大卫星的二级液体运载火箭。
CZ-2C is a two-stage liquid propellant launch vehicle, which is suitable for launching heavier LEO satellite.
土星的最大一颗卫星，离该行星的距离列第14位，它是太阳系中第二大卫星。
The largest satellite of Saturn and the 14th in distance from the planet. It is the second largest satellite in the solar system.
七是土星的第八大卫星，也是土星已命名的48个卫星中最大的形状不规则卫星。
It is the eighth-largest satellite and the largest irregularly-shaped satellite of the 48 named Saturnian moons.
他们的制造成本可以降低好几万美元，这使得他们比目前的大卫星便宜成千上万倍。
Their construction costs can be down in the tens of thousands of dollars, which makes them thousands of times cheaper than today's big satellites.
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.
土卫六土星的最大一颗卫星，离该行星的距离列第14位，它是太阳系中第二大卫星。
The largest satellite of Saturn and the14th in distance from the planet. It is the second largest satellite in the solar system.
强调了非金属材料在提高卫星性能、减轻卫星结构质量，以及增大卫星有效载荷方面的作用。
The functions of nonmetal materials to improve the parameters of satellite, reduce the mass of satellite structure and increase the effective payload of satellite were stressed.
科学家今天声称，在土卫五——土星的第二大卫星星—一层稀薄的大气中含有氧气和二氧化碳。
Saturn's second-largest moon Rhea has a thin atmosphere filled with oxygen and carbon dioxide, scientists said today.
更秘密的太空研究则设想，比方说可以发射小卫星充当“守护天使”，来侦测针对大卫星的可能攻击。
More esoteric space research has ideas such as sending small satellites to act as “guardian angels”, detecting possible attacks against the big birds.
木星第四大卫星木卫二（欧罗巴）今日天气预报的温度为零下280华氏摄氏度（相当于零下138摄氏度）。
Today's weather forecast for Europa, Jupiter's fourth largest moon, is 280 degrees below Fahrenheit.
我们曾指出，在X行星和其卫星正常的情况下，这些环绕的大卫星距离X行星不会远于5百万英里。
We have stated that under normal circumstances for Planet X and its entourage, the large Moons in the swirls are no further from Planet X than 5 million miles.
更秘密的太空研究则设想，比方说可以发射小卫星充当“守护天使”，来侦测针对大卫星的可能攻击。
More esoteric space research has ideas such as sending small satellites to act as "guardian angels", detecting possible attacks against the big birds.
1610年的今天，伽俐略·伽俐雷首次发现了木星的四大卫星。他依次将四颗卫星命名为伽俐略卫星。
1610 - Galileo Galilei observes the four largest moons of Jupiter for the first time. He named them and in turn the four are called the Galilean moons.
美国航天局星期二公布的第一张照片显示了木星四颗最大卫星中的三颗卫星，分别是埃欧、欧罗巴和盖尼米德。
The U. S. space agency released a picture Tuesday showing Jupiter surrounded by three of its four largest moons — Io, Europa and Ganymeade.
GPS和GLONASS作为当今世界上在轨运行的两大卫星导航系统，其广播星历参数的设计和算法各具特点。
Designs of the broadcast ephemeris parameters and algorithms of GPS and GLONASS, two major operational satellite navigation systems today have their respective features.
美国宇航局(NASA)的科学家日前宣称，最新证据表明，土星的最大卫星泰坦(即“土卫六”)存在生命迹象。
Scientists from NASA have found evidence of life on Saturn's biggest moon, Titan.
其表明土星这颗巨行星的第二大卫星土卫五（Rhea）有大气层——其中70%是氧气，另外30%是二氧化碳。
show that Rhea, the second biggest moon of the giant planet, has an atmosphere that is 70 per cent oxygen and 30 per cent carbon dioxide.
其表明土星这颗巨行星的第二大卫星土卫五（Rhea）有大气层——其中70%是氧气，另外30%是二氧化碳。
show that Rhea, the second biggest moon of the giant planet, has an atmosphere that is 70 per cent oxygen and 30 per cent carbon dioxide.
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