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| 2020, Vol. 27(6): 22-25 DOI: | ||
| Scientific and Technological Innovation Achievements in the Exploration and Development of Changqing Oilfield | ||
| Hao Qian, Han Dong | ||
| Technology Department, PetroChina Changqing Oilfield Company | ||
| Received null Revised null | ||
| Supporting info | ||
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