Pregr普雷格尔
PREabbr.Petroleum Refining Engineer炼油工程师
prematur ignition[机] 过早引燃, 早点火
premixed elements预混素材
pre-concert tal音乐会前讲座
Pre-calibration预标定
preclinical phase临床前期
predefined phrase预定定义短语
pre-school care学前照顾
pre-coordinated预调式
pre-deformation预变形
preceding effects前茬效应