landform

The thalweg in loess hill area is an important terrain structural line, reflecting topography and landform character.

黄土丘陵区沟沿线,是反映该区貌特征重要结构线。

There are many differentiae in urban plaza construction between mountainous city and plain city because of landform undulation.

山城市由于起伏,在城市广场建设中与平原城市有许多不方。

The wavy distribution curve of precipitation formed on the longitudinal-arranged underlying rangegorge landforms.At leeside of range, dry valley formed due to fohn effect.

纵向列岭波，成明显降水波状起伏分布曲线，气流越过山岭后下沉气流带来“焚风”效应，成干热河。

The general formula about the calculation of downslide force and resistance to sliding in the arbitrary unit of landslide is deduced in the digital landform image.

讨论了滑坡动态方向稳定性系数概念，并在此基础上定义了滑坡滑动方向和滑坡稳定性系数。

It was estimated that the prospect perspective were weakness in Zhidan area once, since data was narrow, and prospect is difficult for complicated landforms (vale, ridge and replat).

摘要由于资料限制，前人对志丹探区勘探前景评价较低，加之沟、梁、赤纵横貌特征，勘探难度较大。