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| 2021, Vol. 28(1): 60-62 DOI: | ||
| Analysis of China Natural Gas Industry Prosperity Index in the First Quarter of 2021 | ||
| Wen Yumei1, Shen Xilin2 | ||
| 1. PetroChina Southwest Oil & Gasfield Company; 2. PetroChina Natural Gas Industry Prosperity Index Research Center, Southwest Petroleum University |
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| Received null Revised null | ||
| Supporting info | ||
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