The rover found stratified soil layers of different compositions, with evidence of water below the surface.
漫游者发现了分歧组成的分层的土壤层，具有地表下的水的迹象。
In addition, it compares the results in stratified soils with those in homogeneous soil. It shows that the formulae in this paper are feasible on design of practical engineering.
其结果与均匀土壤情况下所得结果进行比较，表明本文提出的公式用于实际工程设计是可行的。
Even though potassium is stratified under reduced tillage, it is apparent that roots proliferate sufficiently near the soil surface to assume adequate potassium uptake by crops.
虽然在少耕制下，土壤钾有明显的分层分布但在土表附近，作物根系发达保证作物对钾有足够的吸收。
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