The fourth is that, The uniform calculation of the whole lifecycle engineering cost, its aim is to supply model supporting system to whole lifecycle engineering cost management.
全生命周期工程造价统一计算，它是为全生命周期工程造价管理提供模型支持系统。
Compared with the 2-d sediment model, the coupled model is a short-cut calculation, and the accuracy of its results can satisfy the demands of engineering application.
该模型与平面二维水沙模型相比简化了计算，且其计算精度满足工程应用的要求。
Therefore the model proposed covers a rather wide range of application and its calculation accuracy can meet the general requirement of engineering design.
因此，本文提出的模型有较广的适用范围，其精度也能满足一般工程计算的要求。
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