pumping a liquid into an organ or tissue (especially by way of blood vessels)
perfusion详细解释
per.fu.sion
n.（名词） The act of perfusing. 灌注的行为 The injection of fluid into a blood vessel in order to reach an organ or tissues, usually to supply nutrients and oxygen. 灌注法：为了进入器官或组织把液体注入血管，多用以提供营养和氧
