| • slow sand method | |
| मंद: languish sluggard Largo light lonesome phlegmatic | |
| बालू: concrete grit sand sands Sand sand blast utility | |
| विधि: act regularity regulation rite rule ceremony fate | |
मंद बालू विधि अंग्रेज़ी में
[ mamda balu vidhi ]
| • slow sand method | |
| मंद: languish sluggard Largo light lonesome phlegmatic | |
| बालू: concrete grit sand sands Sand sand blast utility | |
| विधि: act regularity regulation rite rule ceremony fate | |
