"At this point, the origin of Mercury's large core is still a mystery," said Larry Nittler, a cosmochemist at the Carnegie Institution of Washington who led the X-ray spectrometer study.

“从这点上说，水星巨大核心的起源仍然是一个谜，”华盛顿·卡内基研究所的天体化学家，X射线光谱仪研究的领军人物Larry Nittler如是说。

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The scanning electron microscope provides information on chemical composition by use of X-ray spectrometer attachments.

扫描电子显微镜能利用x射线谱仪的附件来提供化学组份的信息。

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Detective efficiency is an important instrumental parameter of X ray photoelectron spectrometer.

探测效率是X射线光电子能谱仪一个很重要的仪器参数。

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X-ray and gamma-ray spectrometer, a magnetometer and a laser range-finder, as well as good, old-fashioned digital photography.

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But the science team on Curiosity needed a target to try out the first close-contact work using the rover's arm-held X-ray-spectrometer, APXS. So the dark pyramid was chosen and informally given the name Jake Matijevic in honour of a recently deceased rover engineer.

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It is using its mast-mounted colour cameras and laser spectrometer, together with its arm-held "hand lens" camera and X-ray spectrometer, to try to find the best drill candidate.

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