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| посматрање | |||
| Английский тезаурус | |||
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| The condition of weather and terrain that permits a force to see the friendly, enemy, and neutral personnel and systems, and key aspects of the environment. (FRA) | |||
| obbo; observ; obsv | |||
| obsn; obsr | |||
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Observation : 3 фразы в 2 тематиках |
| Математика | 2 |
| Электроника | 1 |