该项研究的作者还说，他们的研究可以用来估计总悬浮微粒对其他国家和时段的影响。
The authors said their research can be used to estimate the effect of total suspended particulates on other countries and time periods.
该项研究的作者还说，他们的研究可以用来估计总悬浮微粒对其他国家和时段的影响。
The authors said their research can be used to estimate the effect of total suspended particulates on other countries and time periods.
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