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| 固 体燃料火箭发动机装药 充填面积 (зарядом ракетного двигателя твёрдого топлива) | |||
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занятая площадь : 7 phrases in 4 subjects |
| General | 2 |
| Hydrology | 1 |
| Technology | 3 |
| Water resources | 1 |
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