With similarity considerations on governing equations, the heat transfer of mixed convection can be predicted to be controlled by Archimedes number and geometric factors.

通过控制方程的相似律分析，可预言混合对流传热由阿基米德数和几何因子控制。

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By introducing dual variables, the dual governing equations and boundary conditions, which are composed by mixed variables under whole state space, are obtained.

引入对偶变量，进一步建立使问题化为在以混合变量组成的全状态辛空间中的控制正则方程和初边条件。

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The governing integral equations are established by the method of mixed boundary-condition land the simplified form is given.

用混合边界条件方法建立了问题的确定积分方程组，并进行了简化。

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That will be music to the ears of her coach Mick Woods, who works with Twell at UK Athletics' (UKA) endurance centre at St Mary's University in Twickenham, and it will delight the governing body, which knows how important 2009 is for the sport after a mixed showing in Beijing.

BBC: 'New Paula' targets gold in 2012

UEFA, European soccer's governing body, has tried to tackle the problem by adding extra officials behind each goal, but encountered mixed results.

WSJ: Heard on the Pitch