纤维长度和宽度的频率分布符合造纸原料的要求。
The frequency distribution of fiber length and width accords with the demands for paper-making raw materials.
结果表明：从髓心向树皮纤维长度和宽度呈逐渐增加的趋势，达到最大值后增加缓慢；
The results indicated that the fiber length and fiber width of the wood increased gradually from the pith to the bark at first, and then increased slowly when to reach the highest level.
不同树干高度处的平均木材密度、纤维长度和纤维宽度存在显著差异。
The significant differences also existed in wood basic density, fiber length and fiber diameter at different tree height.
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