🌐EnglishEnglishDeutschEspañolItalianoNederlandsPortuguêsРусскийفارسی中文日本語EntityQ937912· pop 15· linked from 186 articlescountercurrent exchangemechanism occurring in nature and mimicked in industry and engineeringAvailable in 15 languagesEspañolDeutsch中文РусскийPortuguêsItalianoBosnianCatalanHebrewNederlandsConnectionskidneyEntitygillEntityCategoriesAnimal anatomyChemical process engineeringHeat transferIndustrial processesRenal physiology