Finally listen to the teacher said that this is just a haze, due to excessive dust formation.

最后听老师说这只是雾霾，由于灰尘过多而形成。

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All roads paved, and grounds planted in grass, or otherwise landscaped, to minimize dust formation.

铺平所有道路，地面种草或采取其他美化地面的方法以减少灰尘。

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This article discusses the principal for dust formation and the available measures for dust removal in urea prilling process.

论述尿素喷淋法造粒工艺中尿素粉尘形成的主要原因及如何减少粉尘弥散的可能途径。

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Even though they account for only about 1% of the mass of a typical interstellar cloud, interstellar dust grains play a crucial role in the creation of this rich variety of molecules and in the process of star formation.

BBC: University of Nottingham