| 序号 | 英文主题词 | 中文主题词 | 命中文献数量（篇） |
|---|
| 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 | | 201 | Nucleotide Mapping | 核苷酸图谱 | 104 | 10 | 14 | 9 | 2 | 2 | 0 | 0 | 0 | 0 | 141 | | 202 | Nucleotide Deaminases | 核苷酸脱氨酶类 | 48 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 55 | | 203 | Nucleotide Transport Proteins | 核苷酸转运蛋白质类 | 9 | 4 | 1 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 18 | | 204 | Nucleoside Deaminases | 核苷脱氨酶类 | 1267 | 71 | 60 | 7 | 4 | 6 | 1 | 0 | 0 | 0 | 1416 | | 205 | Nucleoside Transport Proteins | 核苷转运蛋白质类 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | 206 | Nuclear Respiratory Factors | 核呼吸因子 | 17 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | | 207 | Nuclear Respiratory Factor 1 | 核呼吸因子1 | 9 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | | 208 | Nuclear Matrix | 核基质 | 317 | 44 | 47 | 0 | 3 | 5 | 1 | 0 | 0 | 0 | 417 | | 209 | Nuclear Matrix-Associated Proteins | 核基质相关蛋白质类 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | | 210 | Nucleobase, Nucleoside, Nucleotide, and Nucleic Acid Transport Proteins | 核碱基, 核苷, 核苷酸和核酸转运蛋白类 | 10 | 4 | 1 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 19 | | 211 | Nucleobase Transport Proteins | 核碱基转运蛋白质类 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 212 | Nuclear Fusion | 核聚变 | 31 | 0 | 3 | 74 | 0 | 0 | 1 | 0 | 0 | 0 | 109 | | 213 | Nucleocapsid | 核壳 | 149 | 21 | 28 | 6 | 2 | 2 | 11 | 0 | 0 | 0 | 219 | | 214 | Nucleocapsid Proteins | 核壳蛋白质类 | 2226 | 224 | 194 | 66 | 12 | 8 | 10 | 0 | 0 | 0 | 2740 | | 215 | Nuclear Pore | 核孔 | 135 | 0 | 15 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 155 | | 216 | Nuclear Pore Complex Proteins | 核孔复合蛋白质类 | 16 | 6 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 28 | | 217 | Nuclear Fission | 核裂变 | 36 | 0 | 3 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 57 | | 218 | Nuclear Cap-Binding Protein Complex | 核帽结合蛋白质复合物 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 219 | Nuclear Energy | 核能 | 883 | 1 | 76 | 377 | 41 | 0 | 6 | 1 | 0 | 1 | 1386 | | 220 | Nucleolus Organizer Region | 核仁组成区 | 1111 | 14 | 28 | 1 | 14 | 2 | 0 | 0 | 0 | 0 | 1170 |
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