Piman.皮玛族人；皮玛族语PIn.圆周率Pirquet rs reaction划痕试验pilocarpine nitrate硝酸毛果芸香碱piroxicam cinnamate肉桂酸吡罗昔康<消炎镇痛药>Pi is a constant.圆周率是个常数Pirogoff's triangle植物机能学pilat fractionation润滑油分馏piffling complaints无谓的牢骚.Piranga ludovicianan.黄腹比蓝雀(唐纳雀科)Piobable Constraint概率约束PI Bunkering Clause保赔协会加油绕航条款