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| 2011, Vol. 48(2): 157-160 DOI: | ||
| Establishment and Application of Independent Surveying Coordinate System for Super-long Tunnels' Construction | ||
| (Project Management Department of Lanzhou-Chongqing Railway, China Railway No.19 Construction Bureau Group, Dingxi 743000) | ||
| Received null Revised null | ||
| Supporting info | ||
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