Since the influence of cross-coupling is not ignored, the results from this paper are not limited in the cross sectional dimensions.
因为没有忽略横向耦合的影响，故用本法的计算结果不受横向尺寸的限制。
Lumber is grouped into different categories such as: dimension lumber, boards, and timbers based on the following cross-sectional dimensions.
锯材分为不同的类别，如：基于以下断面尺寸有规格材、板材和方木。
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