矿区铁路田韩线DK56+665 m处3孔12.0 m钢筋混凝土桥梁下沉整治
광구철로전한선DK56+665 m처3공12.0 m강근혼응토교량하침정치
Treatment of the sinking of 3 hole - 12.0m reinforced concrete bridge at DK56 + 665m of Tian -Han line in diggings
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