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| 电集尘: 66 phrases in 9 subjects |
| Architecture | 2 |
| Chemistry | 3 |
| Ecology | 3 |
| Electronics | 2 |
| Metallurgy | 10 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Refrigeration | 1 |
| Technology | 42 |
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