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| natural circulation | |||
| free circulation | |||
| free circulation (без препятствий в бурильной колонне или кольцевом пространстве); free flow (без препятствий в бурильной колонне и кольцевом пространстве) | |||
| свободная циркуляция: 6 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Automobiles | 3 |
| Technology | 1 |
| Transport | 1 |
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