| Soils. Laboratory methods for determining hydraulic conductivity
Грунты. Методы лабораторного определения коэффициента фильтрации |
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SN 459-74Standards of Land Allocation for Oil and Gas … |
RD 31-84-01-90-0Uniform Occupational Safety Regulations for … |
GOST 25584-90Soils. Laboratory methods for determining … |