以下为句子列表：
英文: Connecting with the situation of the Hanguguan Tunnel construction in Zhengxi Passenger Special Line,this paper expounds the construction principles,construction methods and the items that should pay attention to in the construction of the heavy section a
中文: 结合郑西客运专线函谷关隧道施工情况,简述了特大断面湿陷性黄土隧道的施工原则、施工方法以及施工中的注意事项。
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英文: The metamorphous graphite in the section center of heavy section S.G. iron castings is superspheroidal graphite, and not the product of degeneration along the direction from shperoidal graphite to vermicular or flake graphite.
中文: 大断面铸件中心的变态石墨是过球化石墨，而不是球状石墨向蠕虫状石墨或片状石墨方向衰退的产物。
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英文: The validity of the apparatus to the research on the solidification behavior of ductile iron with heavy section was verified.
中文: 验证了这一装置对于厚大断面球铁铸件研究的有效性。
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