 |
| |||
| sludge removal | |||
| de-sludging; desilting; dredging mud from lakes; sludge disposal | |||
| élimination des boues: 2 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| sludge removal | |||
| de-sludging; desilting; dredging mud from lakes; sludge disposal | |||
| élimination des boues: 2 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 1 |