... 2.theorems of mean value (the law of the mean)(中值定理) 1.median grain diameter(粒度中值) 619 median formation sand grain size地层砂 ...
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We use analyzed results of drill cores and median grain diameter to compute bound water saturation of formation.
利用钻井取心分析化验结果和粒度中值，计算地层束缚水饱和度。
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