一项由美国研究者们发表在科学杂志上的研究，就阿波罗号从月球返回地球后，带来月球上许多氯的同位素进行了分析。
A study by US researchers, published in Science, analysed chlorine isotopes of the much-studied samples, brought to Earth by the Apollo space missions.
但是研究团队发现在月球上氯的同位素的比率大约是地球上的25倍。
But the team found that on the Moon it was about 25 times that of the terrestrial chlorine isotope ratio.
天文学家想在月球远端放置射电望远镜；能量学家想提取月球上的氦3这种可以驱动清洁融合反应器回到地球的同位素。
Astronomers talk of placing a radio telescope on the moon's far side; energy experts want to mine the moon's helium 3, an isotope that could power clean-fusion reactors back on Earth.
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