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中文摘要：
通过临海大田平原河网水动力二维数学模型,分析水系调整前后的流场和水位分布,认为水系骨干河流局部扩宽、分支河网与骨干河网的连通,尤其是在灵江下游钓鱼亭镇附近新增加的钓鱼亭控制闸工程,增加了洪水排出通道,分流了洪水,使得大田河水位下降0.2~0.7 m,表明水系调整有利于平原河网防洪排涝,由于城区河网充分连通,加快了城市河网水体的交换,也有利于城区水环境的改善.
英文摘要：
river system was widened and the connectivity between the branch network and the backbone network, especially in the lower reaches of Lingjiang River, the newly built Diaoyuting Gate-controlled Project near Dia river system was wid-ened and the connectivity between the branch network and the backbone network, especially in the lower reaches of Lingjiang River, the newly built Diaoyuting Gate-controlled Project near Diaoyuting increased the flood discharge, decrea-sing the water level of Datian River by 0. 2 ？0. 7 m,which indicates that the adjustment of the water system is beneficial to the flood control and drainage of the plain river network. As the urban river network is fully connected, the exchange of water in the urban river network is speeded up and the urban water environment is improved.
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Finite element analysis of stress intensity facors for surface temperature cracks in a concrete slab
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