terrain profile meaning in Chinese

地形剖面

The authors put forwards a new method which select the terrain profile perpendicular to falling line ( opposite direction of gradient ) to determine the candidate points on ridge and valley
摘要利用有关数学原理从理论上对地形高程断面极值法进行了分析和深入的研究，指出了该方法的不足。
A digital elevation model ( dem ) is a digital file consisting of terrain elevations for ground positions at regularly spaced horizontal intervals . dem may be used in the generation of three - dimensional graphics displaying terrain slope , aspect ( direction of slope ) , and terrain profiles between selected points
数字高程模型( dem )是反映高程信息的数字地面模型，它是以数字的形式按一定的结构组织在一起、表示实际地形高低起伏和地形大小特征的空间分布模型。