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邮政史
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邮政史
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postal history
邮政史
邮政发展的历史。邮政是依赖实物传输网进行书面通信和快速送达小件物品的系统。“邮”指通信方式和组织,“政”指由国家政权进行统治。数千年来,绝大多数邮政系统为政府运行。至今,邮政大力发展,已经具有通政通民通商的特征,也是国民经济运行不可或缺的行业。
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antibiosis plastic
antibiotic
antibiotic fungicides
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antibiotics and secondary metabolite analysis shell
antibiotics-associated diarrhea
anti-blast technology of protective engineering
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antibody-based cancer immunotherapy
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antibody dependent cell mediated cytotoxicity,ADCC
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Antibody-drug conjugates
antibody-drug conjugates,ADCs
antibody engineering
antibody engineering drugs
antibody fragment drug
antibody fusion proteins
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