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| materials and methods (Saadatic); means and methods (Tanya Gesse); techniques (инженерные средства и методы охраны окружающей среды – environmental engineering techniques Alex_Odeychuk) | |||
| tools and techniques (Info World, 2021 Alex_Odeychuk) | |||
| tools and methods (Alexander Demidov) | |||
| средства и методы: 169 do fraz, 41 tematyki |