ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2020, Vol. 40 ›› Issue (6): 925-928.

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Statistics on Global Super large Diameter Tunnel Boring Machines

SUN Heng, FENG Yali   

  1. (China Railway Engineering Equipment Group Co., Ltd., Zhengzhou 450016, Henan, China)
  • Online:2020-06-20 Published:2020-06-29