求翻译：在水利水电、土地整理和道路选线等工程应用领域，土方工程是重要组成部分，也是影响项目成本的重要因素，在城市设计中涉及到丘陵地形时，土方量也往往是投资估算的重要项目。是什么意思？

In the field of water conservancy and hydropower, land consolidation and road route selection, engineering, earthworks are an important part of important factors also affect the cost of the project, and involved in urban design to the hilly terrain, Earthwork is often important project investment es

In hydro-power, land management and road options, such as engineering application areas, earthworks is an important component part, but also impact the cost of the project, the important factors involved in urban design in the hilly terrain, it is also estimated investment is often an important proj

In project application domains and so on water conservation water and electricity, land arrangements and path route selection, the earthwork is the important constituent, also is affects the item cost the important attribute, involves when the city layout to the rolling topography, the earth volume

In water conservancy and hydropower engineering, land consolidation and road line selection field of application, earthworks are important components of, are also important factors that affect project costs, in the city's hilly terrain is involved in the design, earthwork is often estimated investme

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