New optimization technology in DB2 9.7 enables DB2 to automatically use the XML index officeIdx defined on the underlying XML column to process this query.
DB 2 9.7中新的优化技术让DB2能够自动地使用底层xml列上定义的xml索引officeidx来处理这个查询。
The drying mechanism and technology optimization of spray drying are generally studied by experiments. And spray drying lacks theory research, which affects its technical economic index.
喷雾干燥技术的机理及工艺优化常常只能采用实验的方法来分析和探讨，缺乏理论研究，影响了喷雾干燥的技术经济指标。
Some practical problems of this technology, such as tool material selection, special optimization index of cutting parameters and tool geometry determination, are discussed as well.
本文还深入讨论了刀具材料、特定的切削用量优化指标以及刀具几何参数确定等实际技术问题。
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