Pregl普雷格尔(Fritz, 1869-1930, 奥地利化学家, 曾获1923年诺贝尔化学奖)PREabbr.Petroleum Refining Engineer炼油工程师predefined database预定义数据库prefabricated drain塑料排水板Preheating of scrap废钢预热pre-work training岗前培训preclimacteric rise颓化前上升pre-tax allowance课税前津贴Preauricular dimple耳前小凹prerupture response破坏前响应prebiotic condition前生物条件pre-ribosomal RNA核糖体RNA前身, 前核糖体RNA