迄今为止，这个市场被象美国、俄罗斯和中国这样的国家以及欧洲宇航局所控制。

So far that market is controlled by countries like the United States, Russia and China and the European Space Agency.

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这两枚欧洲宇航局建造的卫星将探测太阳和地球之间如何进行相互作用。

The satellites, built by the European Space Agency (ESA), will look at interaction between the sun and the Earth.

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欧洲宇航局近日公布的电脑合成图显示，地球被数百万块太空垃圾包围。

Computer generated images released by the European Space Agency (ESA) have revealed millions of assorted debris around the earth.

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