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)Pachlewski帕赫莱夫斯基Pacchinato帕基纳托Paclitaxol紫杉醇pachymarann.茯苓多糖Paciureanu帕丘雷亚努pachnolite[矿]霜晶石pachygenin厚果皮甙元PAC method投粉末炭法pac-xtra腹透机Pacierotti帕切罗蒂