With the increase of displacement speed, fracture mode of the river patterns gradually became obvious and fracture surface became coarser.
随着加载速度的加快，河流纹断裂形态逐渐变得明显，同时断口形貌变得更加粗糙。
The fracture stress of DP microstructure increased with the increase of displacement speed, and the microcrack density increased with the decrease of displacement speed.
双态组织的断裂应力随加载速度的上升而增加，微裂纹面密度随加载速度的增加明显下降；
The results indicate that the difference of fracture toughness between MD and CD increases with a decrease in jet_wire speed ratio, and the main reason is stronger fibre orientation.
试验结果表明：减小浆网速比， 增强了纤维定向作用，裂缝纵向分布增加，导致纸张中纵横向断裂韧性差异增加。
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