Compared with nature sand, MS (manufactured sand) is characteristic of rough particle and angular, with a large amount of stone dust and lithofacies diversity.

与天然砂相比，机制砂富含石粉，颗粒表面粗糙多棱角，并且岩性多样。

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We study the friction of the motion of a particle on the rough incline.

本文用实验和理论模拟的方法研究了颗粒沿粗糙斜面运动中的问题。

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The image threshold segmentation algorithm based on the Particle Swarm Optimization (PSO) combined with the rough entropy based on boundary region is presented.

提出一种基于微粒群优化(PSO)的边界区域粗糙熵的阈值图像分割算法。

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The rough properties of this particle agree with the Standard Model prediction, but there is roughly 50% uncertainty in all the measurements of the largest couplings.

FORBES: If I Want To Look Well-Read And In The Flow, What Do I Need To Know About The Higgs Boson Discovery And Announcement?