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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
421Brachyspira hyodysenteriae短螺菌属蛇形螺旋体10000010002
422Benzhydryl Compounds二苯甲基化合物29078910819359521013365
423Bicyclo Compounds, Heterocyclic二环化合物, 杂环734709272830378030419047730882050
424Biflavonoids二聚黄酮类10000000001
425Bifidobacterium二裂菌属5133333317493144911460126475
426Binomial Distribution二项分布130365233246360001640
427Blistering Therapy发泡疗法247132126002000309
428Bursa of Fabricius法氏囊1278252014000158
429Breeding繁殖22028105713131996140126238802526936
430Bionics仿生学121112414785614200081615
431Bloodletting放血132620114672680001543
432Bloodletting Therapy放血疗法369159408139138870004405
433Blattaria蜚蠊目1624257213225390001899
434Bariatric Medicine肥胖医学10050000006
435Bariatrics肥胖症治疗学109331188251510170011380
436Bariatric Surgery肥胖治疗外科109331188251510170011380
437Blastomeres分裂球52216355310000582
438Branched DNA Signal Amplification Assay分支DNA信号扩增试验00000000000
439Blocking Therapy封闭疗法5292829080121350005700
440Bees51343013646391112240135925
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