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单词 selectivity
释义 se·lec·tiv·i·ty
\sə̇ˌlekˈtivəd.ē, -vətē, -i also (ˌ)sēˌl-\ noun
(-es)
1. : the quality or state of being selective
 < circulation policy which stressed selectivity as opposed to mass sales — Current Biography >
 < the selectivity of students in the technical institute — C.V.Newsom >
 < newer insecticides … are tending toward a high degree of selectivityIndustrial & Engineering Chemistry >
2.
 a. : the state of possessing or exhibiting selective reflection
 b. : a quantitative or qualitative measurement of the degree to which an electrical circuit or apparatus responds to a desired signal and rejects others
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更新时间:2024/12/23 14:58:26