随着土壤流失程度的增大,流域不同土地利用状况下的A层土壤颗粒粒径分选系数降低。
With the increasing of soil loss, the sorting coefficient for soil particle diameter of a layer decrease in different types of land utilization.
沉积物粒径变化较大,分选差。
储层物性受岩石结构如粒径、分选等控制,也受胶结物含量及溶解作用等控制。
The factor controlled the reservoir properties are the textures of the rocks such as grain size and sorting, cement content and dissolution.
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