 |
 |
 |
 |
 |
|
|---|---|---|---|---|---|
| 1 | dredging of sediment | たい積汚泥しゅんせつ | |||
| 2 | dredging of bottom sediment | 底泥のしゅんせつ | |||
| 3 | dredging of organic bottom sediment | 有機汚泥の浚渫 | |||
|
|
|
|
|
|
|---|---|---|---|---|---|
| 1 | dredging of sediment | たい積汚泥しゅんせつ | |||
| 2 | dredging of bottom sediment | 底泥のしゅんせつ | |||
| 3 | dredging of organic bottom sediment | 有機汚泥の浚渫 | |||
