The parameters considered in this study were depth of stratum, fine content, D50, depth of water level, plastic index, SPT-N and PGA.

在这项研究中考虑的参量是地层的深度， D50， 水平面的深度， 塑料索引， SPT-N和PGA。

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Analysis of the results suggest that poststack depth migration has more advantages in improving S/N ratio, resolution and image effect than poststack time migration and prestack time migration.

对比分析了叠前深度偏移、叠后时间偏移和叠前时间偏移结果，分析表明，叠前深度偏移技术能较好地改善该区复杂构造的成像质量，提高资料的信噪比和分辨率。

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The results show that in the same H & A, with depth of soil increasing, contents of organic matter(OM), NO-3-N, available phosphor(AP) and urease decreased respectively.

结果表明，对于同一封育年限的油松林地，土壤有机质、硝态氮、速效磷和脲酶含量随采样深度增加而减小；

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