PACS图片存档及通信系统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)pachysandran.富贵草属长青地被植物pacing lead起搏器电极线pachymucosa粘膜肥厚pacidamycin杀绿霉素Pacchiaroni帕基亚罗尼pachydernian.皮肤厚；厚皮Pachypterisn.厚羊齿 (盾籽目；安科玛蕨科)Pachydyptesn.巨企鹅 (企鹅目；企鹅科)Pachystigma肥柱花属pachychymia[医] 乳糜浓缩