镁合金地铁车体的一阶垂向弯曲频率提升研究

Journal of Dalian Jiaotong University ›› 2025, Vol. 46 ›› Issue (03) : 46-53. DOI: 10.13291/j.cnki.djdxac.2025.03.005

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U270.32 / U270.41

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