Russian ⇄ English German

возвратный сток stresses
agric.	field wastes; return seepage; surface wastes
ecol.	field waste; regenerated flow; return flow; surface waste
hydrol.	invisible return flow
Makarov.	irrigation return water; regenerated water; return water
nat.res.	return flow (of water)
tech.	regeneration flow
возвратные стоки
Makarov.	field wastes; surface wastes

возвратный сток: 10 phrases in 4 subjects

Ecology	3
Makarov	4
Technology	2
Water resources	1