... volume thermal expansion coefficient 体积热膨胀系数 volume to weight ratio 容重比 volume weight 体积重量 ...
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其容重比板材轻，有良好的回弹性，价格便宜，施工方便。
Its bulk density than plank light, good recovery, cheap price, construction is convenient.
目前为止，那两个因素比页面上的内容重要得多。
Those two factors are by far more critical than the content on the page.
此外分析了在各种不同含水量时，容重、空隙比与波速的单调变化关系，并给出了相应的表达式。
In addition, the monotonic relations of density, void ratio and sound wave velocities for sands with different water content are also presented.
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