Among the most interesting long lines in the field was called Line F. L. Vek between Opocno and Dobruska. References to shorter lines are already in mainpagee. These relate primarily probable underground pipelines, water mains or sewerages. The issue will be here at this place in time elaborated in more detail, with regard to the likely archaeological and geological causes.
Miongoni mwa mistari ya kuvutia zaidi kwa muda mrefu katika shamba hilo Called Line FL Umri Kati Opocno na Dobruska. Marejeo mistari mfupi tayari katika mainpagee . Haya yanahusiana kimsingi kinachowezekana mabomba ya chini ya ardhi, maji mains au sewerages. suala itakuwa hapa katika hii mahali katika wakati alifafanua kwa undani zaidi, kuhusiana na Sababu Archaeological na kijiolojia Uwezekano.