Some very important discoveries have been made by this technology, especially you consider that some objects in space give off radio waves but don't emit any light.

运用这项技术后，已取得了一些非常重要的发现，尤其是考虑到太空中的一些物体会发出无线电波，但不会发出任何光。

youdao

Nearly all astronomical objects in space emit radio waves, whether nearby stars, objects in far away galaxies, they all give off radio waves.

太空中几乎所有的天体都发射无线电波，无论是附近的恒星，还是遥远星系中的天体，它们都会发射无线电波。

youdao

Mr Obama wants to auction off, rather than give away, permits to emit carbon dioxide.

奥巴马想对二氧化碳的排放许可进行拍卖，而不是采取分发的方式。

youdao

Even something too small to emit visible light will probably give off radio waves and infra-red radiation (Jupiter does).

ECONOMIST: X marks the spot