这种地势被解释为表面侵蚀，或许是由于下面的冰的升华所致。
This type of terrain has been interpreted as a sign of surface caving, perhaps due to sublimation of underlying ice.
研究了测定灰岩侵蚀速率的数学模型，并且对一些灰岩表面侵蚀速率作了评价。
Mathematical model of determining erosion rate in limestone is studied and some surface erosion rate of limestone are evaluated.
沿着公路的表面侵蚀率是已报道的东南亚地区退化最为严重的土地最大侵蚀率的两倍。
Surface erosion along the road is about twice as high as the maximum rates reported from the most degraded lands in Southeast Asia.
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