The minimum elevation at which the radar set can discover a target in a certain direction is called defilade angle.
油库自流作业时最小高差的确定雷达在某个方向上发现目标的最小高低角叫遮蔽角。
On the basis of investigation into soil erosion factors, a model which depended upon synthesizing land use types, soil types, elevation, slope and the minimum distance to villages by means of geographical information system ( GIS) was set up for soil erosion prediction.
在对土壤侵蚀影响因素进行调查研究的基础上,建立起综合土地利用类型、土壤类型、地面高程和坡度、至村庄的最小距离等因素的地理信息系统土壤侵蚀研究模型。
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