Due to the restrain of the steep terrain, the constructionexpenditure of highway in mountainous areas is far more costly than that in the flatland.
由于地形受限,导致了山区高速公路的工程造价远远高于平原区高速公路。
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It will perfect cost management of construction project, compensate reasonably constructionexpenditure, reduce construction project cost, increase its payoff and enlarge society fortune.
Simultaneously, because the expenditure of capital construction and runing is costly, a lot of wastewater treatment processes are difficult to be used abroad.