formation median grain size 地层砂粒度中值
pack-to-formation median grain size ratio 充填物与地层砂粒度中值比
formation median grain size ratio 充填物与地层砂粒度中值比
median formation sand grain size 地层砂粒度中值
grain size median 粒度中值
The median grain size value and magnetic susceptibility in the Dashu-Baiyu section show a positive correlation, but a negative correlation with the color L.
大树摆鱼剖面中值粒度与磁化率呈正相关，与色度L呈负相关。
There are many means to detenninating median size, including grain size analysis, thin section and log information.
粒度中值的确定方法较多，包括粒度分析（激光法、筛析法）、薄片粒度分析及应用测井资料计算粒度中值。
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