ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2017, Vol. 37 ›› Issue (7): 912-915.

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SI Jingzhao   

  1. (China Railway Tunnel Group Co., Ltd., Luoyang 471000, Henan, China)
  • Online:2017-07-20 Published:2017-07-26