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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For example, by measuring the basic pitch, you measure the density of the universe.

例如，通过测量基本音高来测量宇宙的密度。

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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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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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