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
탈질은 토양에서 질소를 제거하는 과정입니다.Taljil-eun toyang-eseo jilsoreul jegeo-haneun gwajeong-imnida.Denitrification is the process of removing nitrogen from the soil.