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| zweiflügelige Tür; Doppeltür f | |||
| Flügeltür f | |||
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| double door: 40 phrases in 11 subjects |
| Automobiles | 3 |
| Construction | 21 |
| General | 1 |
| Industry | 2 |
| Materials science | 1 |
| Mechanic engineering | 5 |
| Microelectronics | 1 |
| Municipal planning | 1 |
| Natural resourses and wildlife conservation | 2 |
| Nuclear physics | 1 |
| Technology | 2 |