| |||
| 断面曲线 | |||
|
section curve : 13 phrases in 6 subjects |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Technology | 8 |
| |||
| 断面曲线 | |||
|
section curve : 13 phrases in 6 subjects |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Technology | 8 |