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。

youdao

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.

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