Their research was just published in the journal Chemistry of Materials.

他们的研究只是发表在了材料化学杂志上。

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The UK-based Royal Commission on Environmental Pollution says that while the materials have so far shown no sign of being harmful, there is a "major gap" in research about their potential risks.

这份报告由英国皇家环境污染委员会完成，它说，尽管纳米材料迄今为止没有表明有害的迹象，但是对其潜在风险的研究还有“严重的欠缺”。

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Their research is published online in the Advanced Materials.

他们的研究成果在线发表在《先进材料》杂志上。

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If their research materials were freely subject to subpoena, their sources likely would refuse to confide in them.

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During a preliminary inquiry, the subcommittee consulted with an expert in the law of tax-exempt organizations, and members of the subcommittee did their own research and read voluminous materials involved in this area.

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And instead of wanting to talk about where they might get their necessary materials, they were offering some research work.

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