Radio signals received from the galaxy's centre back up the black hole theory.

从该星系中心接收到的无线电信号证实了黑洞理论。

《柯林斯英汉双解大词典》

According to classical black hole theory, the gravitational field around such objects is so great that nothing, not even light, can escape from their tenacious grip.

根据经典黑洞理论，这些物体周围的引力场之大使得任何东西都无法逃脱其魔爪，连光都不行。

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Some major puzzles in black hole theory and General Relativity, including Hawking radiation, information puzzle, singularity theorem and synchronization of clock rate, are presented.

介绍了黑洞理论和广义相对论中的几个重要疑难，涉及霍金辐射、信息佯谬、奇性定理和钟速同步，并给出了可能的解答。

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One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.

VOA: special.2009.01.20

She developed the theory explaining how and why the ozone hole happens over Antarctica.

VOA: special.2009.03.13