Artesian boreholes
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Central archive Черниговская обл. Семёновский р-н
Central archive Черниговская обл. Семёновский р-н
Семёновский р-н
| What is a difference of pressure and free-flow underwaters in? |
Underwaters being in a direct contact with an atmosphere through the open pores of permeable environment are named free-flow waters. Pressure waters are dissociated from an atmosphere relatively by waterproof breeds. |