| 序号 | 英文主题词 | 中文主题词 | 命中文献数量（篇） |
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| 期刊 | 博硕士论文 | 会议论文 | 报纸 | 年鉴 | 成果 | 专利 | 国家标准 | 行业标准 | 标准 | 总计 | | 30561 | Optic Flow | 光流 | 80 | 7 | 7 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 99 | | 30562 | Oral Sprays | 口腔喷雾剂 | 58 | 2 | 1 | 14 | 0 | 0 | 13 | 0 | 0 | 0 | 88 | | 30563 | Organic Agriculture | 有机农业 | 78 | 0 | 14 | 139 | 0 | 0 | 0 | 0 | 0 | 0 | 231 | | 30564 | Organs at Risk | 危及器官 | 123 | 26 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 213 | | 30565 | Orthognathic Surgery | 正颌外科学 | 19 | 2 | 0 | 0 | 190 | 0 | 0 | 0 | 0 | 0 | 211 | | 30566 | Osteoporotic Fractures | 骨质疏松性骨折 | 1418 | 83 | 280 | 75 | 2 | 18 | 0 | 0 | 0 | 0 | 1876 | | 30567 | Out-of-Hospital Cardiac Arrest | 院外心脏停搏 | 39 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 43 | | 30568 | Overbite | 覆牙合 | 291 | 9 | 57 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 357 | | 30569 | Oxidative Coupling | 氧化偶联 | 7 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | | 30570 | Pain Perception | 痛觉 | 1388 | 53 | 93 | 77 | 0 | 9 | 17 | 0 | 0 | 0 | 1637 | | 30571 | Pancreatic Stellate Cells | 胰腺星形细胞 | 52 | 12 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 83 | | 30572 | Pandemics | 疾病大流行 | 15 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | | 30573 | Parenteral Nutrition Solutions | 胃肠外营养液 | 806 | 40 | 79 | 35 | 1 | 9 | 47 | 0 | 0 | 0 | 1017 | | 30574 | Pasteuria | 巴斯德氏芽菌属 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 30575 | Patient Protection and Affordable Care Act | 患者保护与平价医疗法案 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 30576 | Pentalogy of Cantrell | Cantrell五联症 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | | 30577 | Peptidomimetics | 模拟肽 | 135 | 48 | 24 | 1 | 4 | 3 | 2 | 0 | 0 | 0 | 217 | | 30578 | Performance-Enhancing Substances | 性能强化物质 | 1586 | 19 | 60 | 544 | 19 | 5 | 22 | 0 | 0 | 0 | 2431 | | 30579 | Peri-Implantitis | 种植体周围炎 | 172 | 19 | 28 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 226 | | 30580 | Periodontal Debridement | 牙周清创术 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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