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| группа исполнения (All structures in Seismic Design Category B can be designed using the ELF technique and it is the method most commonly used in this design category. Alexander Demidov) | |||
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design categories : 4 צירופים, 3 נושאים |
| בְּנִיָה | 1 |
| כללי | 2 |
| תעשיית האנרגיה | 1 |