武九铁路扩能提速工程南阳河特大桥既有左线桥拆除爆破
무구철로확능제속공정남양하특대교기유좌선교탁제폭파
Demolition by explosion adopted in existing left-line bridge of Nanyang River ultra-long bridge to improve traffic capacity and increase travelling speed of Wuhan-Jiujiang railway
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