The project started in 2000, when the first two Beidou satellites were launched into geostationary orbit.

该项目始于2000年，当时最初两颗北斗卫星发射到地球静止轨道。

youdao

About every two years, however, the Earth passes Mars as they orbit around the Sun.

大约每隔两年，地球会在绕太阳运行的轨道上经过火星。

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As Kepler showed, the Earth's orbit is an ellipse, with the sun at one of the two focal points.

开普勒曾表明，地球的轨道是一个椭圆，这个椭圆有两个焦点，太阳在其中一个上。

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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

The company already has two scaled-down versions in orbit.

ECONOMIST: The Americans may still go to the moon before the Chinese

KOUROU, French Guiana (Reuters) -- Western Europe's 113th Ariane rocket lifted two communications satellites into orbit for U.S.-based operators after a successful launch from equatorial French Guiana on Wednesday.

CNN: Ariane rocket orbits U.S. communications satellites

This 1, 000-kilogram spacecraft will be similar to the two French Pleiades satellites now in orbit, with a 70-centimeter ground resolution in black and white and 2.8 meters in color.

MSN: Chinese rocket lofts Turkish Earth observation satellite