在没有文件系统缓存的情况下，XML和clob列的Q1执行效果类似，不在缓冲池进行缓冲的clob列略微落后(10%)。
Without file system caching, Q1 performs similarly on XML and CLOB columns, with a slight disadvantage (10%) for the CLOB column which is not buffered in the buffer pool.
本研究主要探讨书法教学训练方案对智力落后儿童注意力的增进效果和教育康复的可行性。
This study aimed to explore the promoting effect of the calligraphy training on attention of MR children, and the feasibility of calligraphy therapy.
精选回收率低的主要原因是旋流器分级效果差及工艺设备落后。强调铜钼分离作业是精选工艺降铜排泥的关键环节。
The reason why the recovery efficiency of cleaning is low is that the classification effect of cyclone is not good and the technical equipment is backward.
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