pukan.普克珠贝(夏威夷海滩上常见的白色有孔小贝壳；可用以串成项链或手镯)PUabbr.钚(=plutonium)abbr.推进装置(=propulsion unit)puyretic ophthalmopathy热眼Puccinia rhei-palmatin.掌叶大黄柄锈菌Purslane polysaccharide马齿苋多糖purified black antimony[医] 纯锑黑, 纯三硫化锑purchasing supply chain采购供应链purification efficiency净化效率purification of protein蛋白质纯化Purposiveness Principle目的原则puerperal ophthalmalgia产后目痛puerperal pudendal pain产后阴痛, 产后产户痛