The sliding surface of rock or soil block usually appears three-dimensional feature, so, the 2-D limit equilibrium method is not good to analyze the block stability.

岩体与土体失稳的滑裂面形状大多具有三维特征，用二维极限平衡理论难以得到与实际相应的分析结果。

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In high slope the pipeline is anchored with sand or soil bags and the upper and lower part of the block is compact solidly.

在大斜坡区段，管线用沙袋或土袋锚固，固定块的上部和下部应压实牢固。

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In order to study the relationship between yield, maize ear treats and organ matter, N-OH, available P and K, we selected field block with different soil nutrition in Mei county, Shaanxi province.

在陕西眉县选择农田土壤养分含量不同的地块，研究不同含量的有机质，碱解氮、速效磷、速效钾与玉米果穗穗部性状及产量的关系。

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