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| 2016, Vol. 53(5): 208-215 DOI: | ||
| Application of Combined Clapboard and Vent-Pipe Ventilation Techniques in the Construction of Extra-Long Tunnels on a Plateau | ||
| (School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043) | ||
| Received null Revised null | ||
| Supporting info | ||
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