地形图上相邻等高线之间的高差称为等高距,也叫做等高线间隔,用h表示。在同一幅地形图上,等高线的等高距相同。等高线的间隔越小,越能详细地表示地面的变化情况;等高线间隔越大,图上表示地面的情况越简略;但是,当等高线间隔过小时,地形图上的等高线过于密集,将会影响图面的清晰度,而且测绘工作量会增大,花费时间也越长。在测绘地形图时,应按照实际情况,根据测图比例尺的大小和测区的地势陡缓来选择合适的等高距,该等高距称为基本等高距。
构造等高距 structure contour interval
等高距间隔 VI
等高距注记 contour interval note
航高等高距之比 [测] altitude contour ration
等高线距 contour interval
两米等高距 two metres contour interval
半距等高线 half-interval contour ; interval contour ; zero five contour
等高线间距 contour interval ; CI
编辑等高线间距 Edit Contour Levels
等级越高震退距离越远 Awe
用变距等高距选取了少量对划分草地类型界线、重要牧草分布界线、季节草地界线有重要指示意义的等高线。
A few contour lines which have significance to delineate the grassland types, the distribution of herbages and the seasonal grassland are chosen by using different contour intervals.
对于采用本方法计算淹没区,准确性受地形图等高距大小、数字化采集精度、数字地面模型(DEM)高程精度以及格网间隔大小、像素探测分辨率等因素的影响。
The accuracy of flood area is mostly dependent on the contour interval of map, accuracy of digitizing map, accuracy of DEM, and interval of GRID, detecting resolution of pixels.
扭距设置精准,扭力精度高,特别适用于手机、数码相机等高精密产品的螺丝装配工作。
Torque setting precision, torsion of high precision, especially suitable for mobile phones, digital cameras contour precision screw assembly work of the product.
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