The bulk fraction is a mixture of methane, carbon dioxide, hydrogen, nitrogen and oxygen. These are measured in terms of percentage by volume.
主要成分是甲烷，二氧化碳，氢气，氮气和氧气的混合气体，这些成分的含量一般用所占填埋气的体积比来表示。
Based on the mixture theory, a mathematical model for the sedimentation of soils in the steady water is established, depending on the volume fraction of the soils.
从混合物理论出发，建立了以土体颗粒体积含量为控制变量的土体静水沉降方程。
It was shown that while the upper limit of volume fraction was about 20%, particle mixture might be significantly separated in a vibrated fluidized bed.
研究表明：当入选体积量的分选上限为20%时，流化床才能对颗粒混合物进行有效的分选，并且在振动条件下比在非振动条件下的分选效率略高一些。
A coording to "Rule of Mixture", analyses the relation between fiber volume fraction and composit tensile property; presents theoretical range of fiber volume fraction.
前言： 根据复合材料的“混和定律”，从理论上分析了纤维增强县合材料的拉伸性能与纤维体积分数的关系，导出了纤维体积分数的理论取值范围。
A coording to "Rule of Mixture", analyses the relation between fiber volume fraction and composit tensile property; presents theoretical range of fiber volume fraction.
前言： 根据复合材料的“混和定律”，从理论上分析了纤维增强县合材料的拉伸性能与纤维体积分数的关系，导出了纤维体积分数的理论取值范围。
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