The effects of fineness, particle appearance and adding amounts on the strengths of cement and concrete as well as the concrete rheological behavior are studied in this paper.

本文研究了粉煤灰细度、颗粒形貌及掺量对水泥和混凝土强度及混凝土流变性能的影响。

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A new approach that incorporates robust appearance filter with a particle filter to realize robust object tracking is presented in this paper.

本文提出一种新的目标跟踪算法，将鲁棒外观滤波与粒子滤波器相结合，从而实现稳定的目标跟踪。

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The result of the discussion shows that the appearance of inorganic nano-scale particle would accelerate the application of inorganic rigid particle in toughening plastic.

通过讨论得出结论，无机纳米粒子的出现，将会大大促进无机刚性粒子在塑料增韧方面的应用。

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But their large particle size makes them heavier in application, resulting in a whitish, chalky appearance that consumers find unappealing.

WSJ: European Sunscreen Roadblock on U.S. Beaches