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| out-of-focus | |||
| decoking | |||
| 脱 焦: 31 phrases in 11 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Architecture | 1 |
| Chemistry | 1 |
| General | 4 |
| Metallurgy | 9 |
| Oil / petroleum | 2 |
| Surgery | 1 |
| Technology | 9 |
| Transport | 1 |
| Water resources | 1 |
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