| 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 | | 221 | Lawsonia Plant | 散沫花属植物 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | 222 | Lawyers | 律师 | 2227 | 1 | 70 | 1971 | 1 | 1 | 0 | 0 | 0 | 0 | 4271 | | 223 | Laxative Agents | 润下剂 | 573 | 6 | 47 | 33 | 0 | 3 | 8 | 0 | 0 | 0 | 670 | | 224 | Laxatives | 缓泻药 | 92 | 0 | 1 | 19 | 2 | 0 | 1 | 0 | 0 | 0 | 115 | | 225 | Laxatives (TCD) | 润下药 | 27858 | 146 | 1454 | 7449 | 63 | 66 | 224 | 16 | 0 | 18 | 37294 | | 226 | LDL-Receptor Related Protein-Associated Protein | LDL-受体相关蛋白关联蛋白质 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | 227 | LDL-Receptor Related Proteins | LDL-受体相关蛋白质类 | 152 | 9 | 17 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 180 | | 228 | Lead | 铅 | 14963 | 153 | 1108 | 1293 | 33 | 95 | 77 | 17 | 0 | 41 | 17780 | | 229 | Lead Compounds | 铅化合物 | 718 | 6 | 25 | 72 | 0 | 1 | 3 | 0 | 0 | 0 | 825 | | 230 | Lead Poisoning, Nervous System | 铅中毒, 神经系统 | 69 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 71 | | 231 | Lead Poisoning, Nervous System, Adult | 铅中毒, 神经系统, 成年人 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | 232 | Lead Poisoning, Nervous System, Childhood | 铅中毒, 神经系统, 儿童 | 7 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | | 233 | Lead Radioisotopes | 铅放射性同位素 | 24 | 0 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | | 234 | Leadership | 领导 | 41738 | 12 | 3238 | 20533 | 7161 | 1 | 0 | 0 | 0 | 0 | 72683 | | 235 | Learning | 学习 | 162146 | 1237 | 13244 | 48165 | 2026 | 186 | 1120 | 2 | 0 | 3 | 228129 | | 236 | Learning Curve | 学习曲线 | 296 | 13 | 60 | 19 | 4 | 0 | 0 | 0 | 0 | 0 | 392 | | 237 | Learning Disorders | 学习障碍 | 1607 | 12 | 124 | 140 | 2 | 11 | 1 | 0 | 0 | 0 | 1897 | | 238 | Leasing, Property | 租赁, 财产 | 29 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 37 | | 239 | Least-Squares Analysis | 最小二乘方分析 | 2650 | 115 | 533 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 3302 | | 240 | Leber Congenital Amaurosis | 利伯先天性黑矇 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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