 |
| |||
| endurance | |||
| |||
| endurance | |||
| 抗磨度: 16 phrases in 6 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 4 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
|
| |||
| endurance | |||
| |||
| endurance | |||
| 抗磨度: 16 phrases in 6 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 4 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |