| |||
| 推進工法 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
jacking method : 2 do fraz, 1 tematyki |
| Pospolicie | 2 |
| |||
| 推進工法 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
jacking method : 2 do fraz, 1 tematyki |
| Pospolicie | 2 |