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| 2021, Vol. 58(5): 140-146 DOI: | ||
| Study on the Occurrence Characteristics and Drainage Tests of Shallow Natural Gas in High-Gas Bearing Tunnels in Non-Coal Measure Strata | ||
| (1 China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031; 2 Southwest Petroleum University, Chengdu 610500) | ||
| Received null Revised null | ||
| Supporting info | ||
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