PAPR(=powered air-purifying respirator) 电动滤尘呼吸器papn.奶头；乳头n.软食；半流质食物；无实质内容的东西n.政治上的恩惠Pappotheriidae祖兽科Papilio bootesn.黑美凤蝶Papilionoideaen.蝶形花亚科Papilio xuthusn.柑橘凤蝶papillomatosis多发性乳头(形)瘤病Papulacandin D阜孢霉素Dpapyriogenin H小包交换法papulopustular丘疹脓疱性的papilionaceousn.蝶形的papillotubular乳头管形的