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| внутреннее кольцевое пространство (The "A" annulus is the void between the production tubing and the smallest casing string. (wiki) Alexander Demidov) | |||
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A annulus : 7 a las frases, 4 temas |
| Aparatos médicos | 2 |
| General | 2 |
| Ingenieria eléctrica | 1 |
| Makárov | 2 |