The two spacecraft will link up in orbit.

两艘宇宙飞船将在轨道上对接。

《牛津词典》

The European Space Agency has launched into orbit, two space observatories that will help scientists understand the information of the universe.

欧洲航天局将两个太空望远镜发射进入轨道，将帮助科学家理解宇宙信息。

youdao

Although our solar system only has one star, most stars like our sun are not solitary, but are binaries where two stars orbit each other a pair, or multiples involving even more stars.

虽然我们的太阳系只有一颗恒星，但其实大部分和我们太阳相似的恒星都不是单个的，而是由两个恒星相互旋转组成的双星系统，或者甚至包含更多恒星的多星系统。

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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