Piman.皮玛族人；皮玛族语PIn.圆周率piliferous tubercle毛环瘤pilose caribou horn驯鹿茸pispharynx spiralis螺旋咽饰带线虫Piloearpine nitrate硝酸毛果芸香碱piscrimimant scores判别值piling displacement桩位偏差pilton packing ring活塞填密环, 活塞密封环pilose antler velvet鹿茸茸毛Pistil mature degree花蕊成熟度PI signaling pathway磷脂酰肌醇信号传导途径