根据岩土介质中复杂的地质现象及其地层的层状展铺特性，建立了三维地层模型。
According to the complex geological phenomena in rock and soil medium and the features of strata, a three dimensional strata model is established.
锚杆在岩土介质中的复杂性、多变性，使得锚固能力确定计算十分困难。
The complexity and changeability of the rock medium into which anchors are put make it rather difficult to determine the anchoring ability.
植物根系在岩土介质中受力的复杂性、多变性，使得确定其加固能力十分困难。
The stress which acts on the plant root in the crag earth medium is very complexity and polytrope, so determining its reinforcement ability is extremely difficult.
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