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| 截面分析 | |||
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section analysis : 16 phrases in 10 subjects |
| Aviation | 3 |
| Business | 1 |
| Desert science | 1 |
| Ecology | 1 |
| Economy | 3 |
| Electronics | 1 |
| International Monetary Fund | 1 |
| Oil / petroleum | 2 |
| Technology | 2 |
| United Nations | 1 |
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