noun🔗Share역류The flow of a fluid (through a pipe etc) in a direction opposite to that which is normal or intended."The plumber installed a backflow preventer to stop the dirty water from the drain from causing a backflow into the clean water pipes. "배관공은 배수구의 더러운 물이 깨끗한 수도관으로 역류하는 것을 막기 위해 역류 방지 장치를 설치했습니다.utilitytechnicalsystemdirectionprocessChat with AIVocabulary GamePractice Reading
