Based on dust analysis of preparation plant, many kinds of dust prevention measures are pointed out in order to further control the harm caused by dust.

在对选煤厂粉尘分析的基础上，提出了多种防尘对策，以进一步控制粉尘对人身造成的危害。

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After careful analysis they found the clear signature of an object located within the gap in the dust disc, about one billion kilometers from the star.

在仔细分析后他们发现了明显的迹象，表明在尘埃盘的裂口处有一个物体，距离恒星大约十亿千米。

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Pollution sources of road dust may be identified by means of electron microscope, factor analysis and cluster analysis.

利用电镜分析、因子分析和聚类分析方法可以识别道路尘埃物质的污染源。

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Stardust was commanded to take more than 70 high-resolution pictures, and the dust analysis instruments investigated the environment around the comet.

BBC: Stardust probe finds 'subdued' comet crater

Analysis of the dust material over the weekend indicated that it does not contain material that is seriously harmful to health.

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