contour cropping是什么意思

用法例句

The paper analyzes the effect of three cultivation measures of contour cropping,manual excavation and manual hoeing to the reduction of run-off energy and erosion based on office artificial rainfall testing.

在室内人工降雨试验的基础上,分析了等高耕作、人工掏挖和人工锄耕3项耕作措施对径流能量的削减作用和减蚀作用。

The principle of equal-distance and equal-height electromagnetic distance measurement for triangulated height surveying is introduced in this paper.

介绍了等距等高电磁波测距三角高程测量的原理,详细深入地分析了这种高程测量方法的精度,通过计算和作图表示,可直观地反映在不同条件下的精度变化情况,讨论了代替国家等级水准测量的范围和条件,可供生产实际和进一步研究参考。

Research on contour lines automatic processing in digital topographic survey;

数字地形测量等高线自动处理问题探讨

The grid-fractionizing model based on the reconstructed contour lines;

基于重构等高线的格网细化模型

The modeling and analysis of accuracy for LOD model based on reconstructed error of contour lines;

基于等高线重构误差的LOD建模及精度分析

The research of draw contour by the general digital image to making use of the DLT algorithm;

利用DLT算法实现普通数码影像绘制等高线方法研究

Contour paradox and modification of contour definition;

等高线悖论及等高线定义的修改

Implementation and application of voltage contour based on Arc/info;

基于Arc/info的电压等高线的实现及应用