Additionally, if the X-ray source is in a binary system, the X-rays will be periodically cut off as the source eclipsed by the companion star.

另外，如果x射线源是一个双星系统，当x射线源被它的伴星所遮挡时，发出的x射线就会周期性地被切断。

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Monolithic capillary X-ray lens can collect divergent white X-ray beam emitted from a point X-ray source into a quasi parallel beam.

整体平行束X光透镜能把点X光源发出的发散X光束聚焦后转变成准平行X光束。

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One of the best cases known goes by the name Cygnus X-1, because it was the first X-ray source discovered in the constellation Cygnus the Swan.

最经典的例子就是天鹅座X-1，这是在天鹅座星云中发现第一次发现的X射线源。

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Besides revealing clues about the lost galaxy, the black hole itself, called HLX-1 (Hyper-Luminous X-ray source 1), is scientifically interesting, researchers said.

MSN: Rare Black Hole Survives Galaxy's Destruction

X-ray source around the patient, and simultaneously rotates a set of electronic receptors on the opposite side.

ECONOMIST: Chopping wood

"It's correlating the increasing intensity in different bands that provides really important clues about the structure of the source, " Prof Madejski - a co-investigator on the NuStar X-ray telescope, told BBC News.

BBC: Blazar Markarian 421's flare-up is cosmic coincidence