| |||
| 弹性横断面 | |||
|
elastic section : 8 phrases in 5 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Technology | 4 |
| |||
| 弹性横断面 | |||
|
elastic section : 8 phrases in 5 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Technology | 4 |