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| посматрање | |||
| Англійський тезаурус | |||
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| obbo; observ; obsv | |||
| obsn; obsr | |||
| 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) | |||
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Observation : 3 фрази в 2 тематиках |
| Електроніка | 1 |
| Математика | 2 |