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curved top chord (фермы) | |||
curved top chord (моста) | |||
curved top chord |
криволинейный верхний пояс: 26 phrases in 9 subjects |
Construction | 9 |
Electronics | 1 |
Mechanic engineering | 1 |
Military | 1 |
Rail transport | 6 |
Road works | 3 |
Seismology | 3 |
Technology | 1 |
Transport | 1 |