As they pass through, they trace out an arc, just like a thrown ball falling due to gravity.

当中子穿越平板时，它们划出一道弧线，就像投出一个小球一样。

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That work, by a group of researchers at the Institut Laue-Langevin (ILL) and published in a paper in Nature, used slow-moving neutrons falling due to gravity.

这项工作，是劳厄·郎之万研究所(ILL)的研究团队完成的，结果发表在《自然》期刊上，证明过程运用了慢速中子在引力下的掉落现象。

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The production of oil, the country's main source of income, has been steadily falling due to a lack of technology and investment.

而这个国家的主要的收入来源石油业也由于缺乏技术革新和资本投入在不断下滑。

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Throughout this year, the Icelandic currency has been falling due to the currency speculators running for shelter.

BBC: Why raising interest rates won't work

As they pass through, they trace out an arc, just like a thrown ball falling due to gravity.

BBC: Neutrons could test Newton's gravity and string theory

Its margins are falling due to escalating programming costs for films and sport.

ECONOMIST: Canal Plus