As analysis removes words before indexing, it decreases index size, but it can have a negative effect on precision query processing.
因为分析在编制索引之前移除单词，它减少了索引的大小，但是不利用精确的查询过程。
By indexing the two types of fear reactions in the presence of increased light, the researchers learned that the image-forming pathway of the rods and cones had the modulating effect on fear.
通过增加光线来研究两种类型的恐惧反应，研究人员发现有杆状体和视锥的图像成像通道可以调节恐惧的反应。
Spatial data is the main part of the GIS data system, constructing reasonable and efficient spatial indexing has an significant effect on the GIS system performance.
空间数据是GIS系统的主要数据组成部分，建立合理高效的空间数据索引对于GIS系统的性能有着极其显著的影响。
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