 |
| |||
| 梁式结构 | |||
|
beam structure : 15 phrases in 6 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| General | 1 |
| Metallurgy | 2 |
| Nuclear physics | 1 |
| Technology | 9 |
|
| |||
| 梁式结构 | |||
|
beam structure : 15 phrases in 6 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| General | 1 |
| Metallurgy | 2 |
| Nuclear physics | 1 |
| Technology | 9 |