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工业能源 : 30 phrases in 10 subjects |
| Aviation | 1 |
| Company name | 1 |
| Earth sciences | 5 |
| Ecology | 7 |
| Electronics | 2 |
| Energy industry | 1 |
| Environment | 1 |
| Geology | 1 |
| Oil / petroleum | 8 |
| Technology | 3 |
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