• 两种木材力学性质密度表现显著的相关关系。

    There was a remarkable positive correlation between mechanical properties and air-dried density for two wood species.

    youdao

  • 种源木材密度力学强度差异显著,管胞长、宽和壁厚的差异均显著且高于种源间的差异。

    Meanwhile, there were not significant differences in wood air dry density, mechanical strength and cell wall percentage of intra provenance.

    youdao

  • 物理力学性质指标成熟基本密度气干密度顺纹强度抗弯强度、抗弯弹性模量冲击韧性高于幼龄材;

    In physical and mechanical indexes, the basic density, air-dried density, compression strength parallel to grain, MOR, MOE and toughness of mature wood are higher than that of juvenile wood.

    youdao

  • X射线扫描密度计测量含水率及其每一年轮水分分布

    In this paper, the moisture content and its distribution of each growth ring in air dried wood specimens have been tested by using X-ray scanning densitometer.

    youdao

  • X射线扫描密度计测量含水率及其每一年轮水分分布

    In this paper, the moisture content and its distribution of each growth ring in air dried wood specimens have been tested by using X-ray scanning densitometer.

    youdao

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