图9中定义了关系模式的5个SQL查询，它们逻辑上等效于xml列的5个XQueries。
Five SQL queries were defined over the relational schema in Figure 9 that are logically equivalent to our five XQueries over XML columns.
由图可见，通过导磁机壳的直流磁密随着等效气隙磁密的增加而下降，反之亦然。
As may be seen from the diagram, dc flux going through the back yoke decreases with increasing equivalent gap flux, and vice versa.
对水轮发电机的典型通风系统结构进行了分析，绘出相应的等效风路图。
In this paper, the ventilation system of water - wheel generator is analyzed, the equivalent ventilation circuit is drawn.
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