Distributed SAR satellite one is a complex and antenna beam synchronization is a prerequisition for interferometry SAR.

分布式SAR是一个复杂的协同工作编队多卫星系统，波束同步是实现干涉SAR的前提。

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One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circular orbit that the Moon has today.

碰撞假说的一个问题是，以这种方式形成的卫星是如何在月球现在的近乎圆形的轨道上运行的。

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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.

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。

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Researchers using satellite images found at least ten percent tree cover on more than one billion hectares of farmland.

VOA: special.2009.09.01

The twenty-two meter long rocket would put a little scientific satellite into orbit as one of the events of the international geophysical year.

VOA: special.2009.06.10

So it died in space. A few months later, the Soviet Union put a one thousand three hundred sixty kilogram satellite into space.

VOA: special.2009.06.10

Jason let us know you can record 3 HD shows at once, two via Satellite and one OTA while playing back a third.

ENGADGET: I4U Reviews DISH's ViP 622 HD DVR [Update] HD

Broadcast television has only one (advertising), satellite television has one and a half (subscriptions and a bit of advertising), and telecoms companies have two (telephone and high-speed Internet).

ECONOMIST: European Media

So, were the only two big satellite firms to merge, this would leave most Americans with a choice of one cable and one satellite operator.

ECONOMIST: Satellite television: Another twist in the tale | The