PTVn.穿透试验飞行器(北极星试验导弹)Ptabbr.[化]元素铂的符号（=platinum）Pteris biauritan.狭眼凤尾蕨Pteroislunulatan.环纹蓑鲉Pterosagittidaen.翼箭虫科Pteris wangianan.栗轴凤尾蕨Pteris linearisn.线羽凤尾蕨pts./hr.abbr.=parts per hour 份数/小时Pteris longipesn.三轴凤尾蕨PTGMS rice line光温敏核不育系pterin pigments蝶呤色素Ptilodon hoegein.侯羽齿舟蛾