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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
1X ChromosomeX染色体15052649980400001682
2X Chromosome InactivationX染色体失活12910114000000154
3X-Linked Combined Immunodeficiency DiseasesX-连锁联合免疫缺陷病20000000002
4X-Linked Inhibitor of Apoptosis ProteinX-连锁细胞凋亡蛋白抑制剂00000000000
5X-Ray Absorption SpectroscopyX线吸收光谱学10000000001
6X-Ray DiffractionX线衍射1503105783242111022422
7X-Ray FilmX线胶片12180576851801672800213155
8X-Ray Intensifying ScreensX线增感屏2600001000027
9X-Ray MicrotomographyX线显微体层摄影术00000000000
10X-RaysX线45968514287612142053191731442817453073
11Xamoterol扎莫特罗1810000000019
12Xanthenes呫吨类74503271120108818113089053
13Xanthine黄嘌呤279101490118000331
14Xanthine Dehydrogenase黄嘌呤脱氢酶2301000000024
15Xanthine Oxidase黄嘌呤氧化酶11263457801110001237
16Xanthines黄嘌呤类235254121295159911712016230427237
17Xanthinol Niacinate占替诺烟酸盐4383471811220000539
18Xanthium苍耳属32382424034000386
19Xanthium Sibiricum苍耳31582321034000374
20Xanthobacter茁平胞菌70000000007
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