Pretti普雷蒂PREabbr.Petroleum Refining Engineer炼油工程师Prev previous buffer in list链表中前一个缓存preoperative preparations.手术前准备工作prefabricated integral frame装配整体式框架prerenal acute renal failure肾前性急性肾[功能]衰竭pre-contractual obligation先合同义务Pre-Raphaelite Brotherhood前拉斐尔派兄弟会prefabricated branched cable预制分支电缆Pre-filter Gradient Method预滤波梯度法pre-competition favourites赛前热门pregresing group contactless预先润滑群接触器