primary response time
网络释义
... primary pollutant 原生污染物; 一次污染物 primary response time 从作出决策到商品上市所需的时间 primary soil 原始土壤 ...
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原声例句
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So, every time you're exposed to a new vaccine or a new antigen you go through this primary response before you have the secondary response.
所以,每当你接触到新疫苗或是新抗原,在再次免疫之前,机体将会经历这样的初次免疫过程
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