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| Ölheizung f | |||
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oil heating : 32 phrases in 12 subjects |
| Chemistry | 1 |
| Commerce | 1 |
| Energy industry | 2 |
| Environment | 8 |
| Finances | 2 |
| Foreign trade | 1 |
| General | 8 |
| Materials science | 3 |
| Mechanic engineering | 3 |
| Oils and lubricants | 1 |
| Technology | 1 |
| Transport | 1 |
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