'slʌdʒı
botqoq, balchiqli, loy, kir
По запросу «sludgy» — результатов: 2: с: Английский
'slʌdʒı
botqoq, balchiqli, loy, kir
ponds used for biological treatment of sewage. Used independently – for treatment by micro-organisms and algae of sinks, saturated with easily oxidizing organic matters,