海南岛西海岸地区砂质沉积物广泛发育。
Sandy sediments extensively developed in the west coast of Hainan Island.
江苏滩涂为粉砂质沉积物组成，有机质含量低，结构性差，抗蚀能力弱。
Seashore is composed of silty sediment in Jiangsu province, content of organic matter is low, soil structure is bad, and the capacity of resistance to erosion is weak.
在亲水砂质、泥质沉积物的压实过程中，油的运移阻力大于水，而且，在压实过程中油的运移阻力是不断增大的。
The migration force of oil is bigger than that of water and increases constantly during the source of compaction of water-wet sandy and argillaceous sediment.
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