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| systems study | |||
| system research | |||
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| systems study | |||
| system researches | |||
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системное исследование : 19 Phrasen in 9 Thematiken |
| Allgemeine Lexik | 2 |
| Astronautik | 2 |
| Elektronik | 1 |
| Energiewirtschaft | 3 |
| Formale Sprache | 1 |
| Luftfahrt | 1 |
| Makarow | 1 |
| Militär | 7 |
| Vereinte Nationen | 1 |