| |||
| 最小深度 | |||
|
least depth : 10 phrases in 5 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Scientific | 1 |
| Technology | 6 |
| |||
| 最小深度 | |||
|
least depth : 10 phrases in 5 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Scientific | 1 |
| Technology | 6 |