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[会议论文] 作者:Arong[1]S.Murakami[2]I.Hosoe[3], 来源:The 7th International Conference on Bridge Maintenance, Safe 年份:2014
  In Japan,there are more than 50,000 steel railway bridges,where more than half of them have been used over 60 years and some bridges are aged over 100 years...
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