prean甲基眠尔通
PREabbr.Petroleum Refining Engineer炼油工程师
precordial scanning心前区扫描
precast prestressedadj.预制预应力的
Pre-dilution mode预稀释模式
prezygotic mutation前合子的突变
precession of earth地球的旋进
pre-reading skill学前阅读技能
precondition calves犊牛催肥准备
pregenerated system预生成系统