在物理力学性质指标中成熟材的基本密度、气干密度、顺纹抗压强度、抗弯强度、抗弯弹性模量及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.

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研究了膨胀土加入石灰改性后，其无荷膨胀率、膨胀力、无侧限抗压强度等指标的变化规律。

Studing on the changing rule of lime modification expansive soil, such as free swelling ratio, swelling strength, non-side limitation compressive strength.

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杨氏弹性模量是反映树干或板材抗弯、抗压强度的重要指标，是开展林木材质育种研究的重要内容。

MOE reflects log or lumber material anti-bend, important index of the anti-press strength, which is the important contents for developing forest wood breeding.

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