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谷系 : 40 phrases in 13 subjects |
| Agriculture | 2 |
| Animal husbandry | 1 |
| Business | 1 |
| Compressors | 1 |
| Desert science | 1 |
| Earth sciences | 3 |
| Economy | 1 |
| Electronics | 1 |
| Geology | 4 |
| Name of organization | 2 |
| Oil / petroleum | 9 |
| Sports | 1 |
| Technology | 13 |
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