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.
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；
Grain orientation tends to be parallel to the coast.
颗粒的排列方向往往是平行于海岸。
We will try to find ESS as a solution of MOPs using our game model based co-evolutionary algorithm, which based on coarse-grain parallel model.
使用基于游戏模型的共同进化算法寻找ESS作为多目标问题的解，该算法是一种基于粗粒度并行模型的进化算法。
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