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| 2018, Vol. 55(3): 1-5 DOI: | ||
| Technical Challenges of Super-Long Mountainous Tunnels at Great Depth | ||
| (1 China Railway Academy Co., Ltd, Chengdu 611731; 2 International Tunnelling and Underground Space Association, Geneva 1219) | ||
| Received null Revised null | ||
| Supporting info | ||
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