n.发生率；影响范围；[数]关联，接合；[物]入射，入射角 变形： 复数：incidences 双语释义：n.(名词)[S]发生率,影响范围 extent to which sth happens or has an effect英英释义： incidence[ 'insidəns ]n.the relative frequency of occurrence of something同义词：relative incidencethe striking of a light beam on a surfa