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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
881Alkyl and Aryl Transferases烷基和芳基转移酶类1232476996620001371
882Alkylating Agents烷化剂6761837162436000789
883Alkylation烷化作用68418831250752977250009180
884Alkylmercury Compounds烷基汞化合物1015980423850001162
885Alkynes炔类6602422291015307941
886Allantois尿囊670331178121001833
887Alleles等位基因1017264716471071456200012645
888Allelic Imbalance等位基因失衡18147419113201900002131
889Allergens变应原6469901059613752710008361
890Allergy and Immunology变态反应和免疫学2086014315534982641995000423571
891Allethrin丙烯除虫菊3500100000036
892Allicin大蒜辣素1479341601041030380001855
893Allied Health Occupations卫生有关职业21291818611319910002475
894Allied Health Personnel卫生保健辅助人员8490158911225661500010693
895Alligators and Crocodiles鼍属和鳄属446118682120000556
896Alliin蒜氨酸23681231006000293
897Allium葱属864439274160427239700010708
898Allium Fistulosum531014123111000671
899Allium Macrostemon薤白390311444820000480
900Allium tuberosum韭菜13604393085020001718
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