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| Röhrenfläche f | |||
| Rohroberfläche f | |||
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поверхность трубы : 15 phrases in 9 subjects |
| Chemistry | 3 |
| Electrochemistry | 1 |
| Geology | 1 |
| Hydrology | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 2 |
| Refrigeration | 1 |
| Technology | 3 |
| Water supply | 2 |
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