实验结果表明：随着刮膜速度提高，薄膜平均粗糙度降低、孔径变小、结晶度增加、纵横向取向度增加。
The results showed that with increasing of casting speed, the cellulose membrane has lower roughness, larger crystallinity, and higher degree of orientation.
边界粗糙度明显影响着颗粒流量密度的横向分布。
Near the sidewall, the density is higher than that in the center of the channel.
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