| |||
top chord of a truss | |||
top boom | |||
truss top chord | |||
upper chord |
верхний пояс фермы : 52 phrases in 9 subjects |
Construction | 22 |
Electronics | 2 |
Mechanic engineering | 1 |
Military | 1 |
Rail transport | 6 |
Road works | 4 |
Seismology | 5 |
Technology | 9 |
Transport | 2 |