未充分利用主题词定义注释准确选择主题词；
The definition of subject headings is not used in choosing the medical subject headings precisely;
本文的使用查询注释的案例研究部分描述了如何确定估计是否准确。
The a case study using query annotation section of the article describes how you can determine if the estimate is accurate.
在您看到星型连接优化的优点后，本文通过带有注释的解释输出准确地告诉您星型连接计划的信息是如何出现在解释文件中的。
After you see the advantages of star join optimization, this article provides annotated explain output to show you precisely how star join plan information appears in explain file.
应用推荐