overall selectivity

英 [ˌəʊvərˈɔːl sɪˌlɛkˈtɪvɪti]

美 [ˌoʊvərˈɔːl sɪˌlɛkˈtɪvəti]

网络总选择性

There is much less index access and no index AND'ing so that the overall performance can be one or two order of magnitude better-depending on predicate selectivity.
只有相当少的索引访问且没有索引AND'ing，这样整体性能将提高一个或两个数量级&取决于谓词选择。
The overall benefit of pushing down keys to filter fact table rows is directly proportional to the filter selectivity of the dimension table.
通过下推键来过滤事实表行的整体效果直接与维度表的过滤选择度成比例。
Under the optimized conditions, the conversion of benzaldehyde is over 90%. The overall yield of m-chlorobenzaldehyde is 79% with 88% selectivity, and there almost is no structural isomer as by products.
苯甲醛的转化率≥90%，间氯苯甲醛的收率≥79%，选择性为88%，氯化产品中基本无同分异构体。
Noise characteristics of an active mixer will seriously affect the overall system performance, such as the sensitivity, dynamic range ( DR), selectivity, etc..
有源混频器的噪声特性会严重影响整个系统的性能，如灵敏度、动态范围、选择性等。