市区土石方工程的爆破往往受到场地、环保等因素的限制，因而对施工提出了更高的要求。
The blasting of earth and rock engineering in civic district is be given much higher requirements because it is restricted by factors involving narrow site and environmental protection.
水利水电工程施工过程中常常需要获得一些小范围的DTM数据，用于地形测绘、开挖形态监测及工程土石方量计算等。
In construction of hydroelectric project, small range DTM data are often needed for topographic surveying, mapping, excavated form detection, earthwork calculation and so on.
优化模型可以广泛应用于道路、堤防等工程的土石方调配问题中。
The model can be used in earth-rock allocation of road engineering and levee engineering widely.
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