preparn.盐酸羟苄羟麻黄碱
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)
preprocessor procedure预处理程序过程
preparing coated media改性滤料
preproduction aircraft预生产型的飞机
Preparative Conditions制备工艺
preprocessor statement预处理程序语句
Preparing for the exam备考
preprocessing operator前处理算子
prepackaged bankruptcy预先包装的破产
preperformance routine赛前行为程序
preputial circumcision包皮环切