persistencen.坚持；毅力persistence in volatility波动持续性persistence of performance业绩持续性persistence characteristic持久特性,余辉特性,暂留特性persistence-time of vision视觉持续时间persistence of hyaloid artery玻璃样动脉残留Persistence and degradability持续性和生物可降解性Persistence organic pollutant持久性有机污染物persistence of fetal circulation持续性胎儿循环Persistence slowing-intravenous infusion持续缓慢静脉输注