Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
증류 과정은 액체에서 불순물을 제거하는 데 사용됩니다.jeungnyu gwajeong-eun aekche-eseo bulsunmul-eul jegeo-haneun de sayongdoemnida.The distillation process is used to remove impurities from liquids.