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| 2011, Vol. 48(2): 161-163 DOI: | ||
| Key Points for the Breaking-through of Large-profile Railway Tunnels in Soft Rocks | ||
| (1 Project Management Department of Lanzhou-Chongqing Railway, China Railway No.19 Construction Bureau Group, Dingxi 743001; 2 Lanzhou-Chongqing Railway Co., Ltd., Lanzhou 730050) | ||
| Received null Revised null | ||
| Supporting info | ||
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