EXPRn.表达式expabbr.花销（=expense）abbr.经历（=experience）abbr.实验（=experiment）abbr.[数]指数（=exponent）abbr.出口（=export）abbr.表达（=express）expiratory valve呼气阀exploding method爆炸法exploratory trip考察旅行exploring desire探究意识exploring trocar探测用套管针exploratory grid钻探网格Exploring spirit探索精神exploratory talk探讨性会谈expansible force膨胀力explos on stroke[机] 爆发冲程