preppyn.大学预科生adj.预科生的;穿着像预科生的
prepn.准备; 预备学校; <非正式>课外作业v.进预备学校; 预备; 准备abbr.准备(=preparation)abbr.介词(=preposition)
preparative thin layer chromatography制备性薄层色谱法
Preparing a Tomato-Based Pizza Sauce准备番茄披萨用调料
Prepartion of plantain herb vermicelli车前草挂面的研制
preprocessing frequency hopping filter前置跳频滤波
preparing reinforced concrete pipe pile预应力管桩
Preproduction Reliability Design Review生产前可靠性设计审查
preparative thin-layer chromatography制备级薄层色谱法
preponderant strategic mineral resources优势战略矿产资源