Je was op zoek naar: echdynnir (Wels - Engels)

i fyny'r afon lle yr echdynnir dŵr mae 13 o arllwysfeydd o waith trin carthion , ac mae lefelau nitradau yn uwch yn yr ardal gyfagos
upstream of extraction in the river , there are 13 outfalls from sewage farms , and nitrate levels are higher in the immediate vicinity

sylwer: defnyddir y cyfrinair i amgryptio ffeiliau a ychwanegir i'r archif cyfredol, ac i ddadgryptio ffeiliau a echdynnir o'r archif cyfredol. pan gaiff yr archif ei gau, dilëir y cyfrinair.
note: the password will be used to encrypt files you add to the current archive, and to decrypt files you extract from the current archive. when the archive is closed the password will be deleted.