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；

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Basic density of Common Jujube and fiber length of English Walnut could be predicted, and the results were significant.

人工经济林枣木基本密度、核桃木材纤维长度可以通过生长轮年龄来预测，且预测效果显著。

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But it also requires that the basic colors are certified to specific hue and density standards.

但它也需要基本颜色认证的具体色调和密度标准。

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Business is booming in the cell phone business because as you go from the second generation to the third generation of wireless communication, you need higher density flash to do all of these multimedia tasks in addition to the basic code storing.

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