PACXn.专用自动计算机交换机PACabbr.太平洋的(=Pacific)abbr.无人驾驶飞机(=Pilotless Aircraft)abbr.政治行动委员会(=political action committee)Pacchionian foramen[医] 帕基奥尼氏孔, [小脑]慕切迹paconia sufnuticosa牡丹皮Pachyneuron aphidis蚜虫宽缘金小蜂Pachyderma laryngis喉厚皮症Pachygnathafengzhenn.凤振粗螯蛛；新种Paclitaxel liposome紫杉醇脂质体Pachyapppa aigeirosn.黑杨粗毛绵蚜Pachysoeca ruttnerin.露氏厚囊藻Pacini neurofibroma帕奇尼神经纤维瘤Pachytodes erraticusn.三带拟厚花天牛