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pressure fluctuation variance
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  “pressure fluctuation variance”译为未确定词的双语例句
     It was found that the law of pressure distribution in a two-dimensional fluidized bed is expressed by Δp=p_i-p_j=ρ_pg(1-ε)(h_j-h_i). The variation law of the pressure fluctuation variance,i. e.
     试验发现:床层压力分布规律可近似的用公式Δp=pi-pj=ρp(1-ε)(hj-hi)来表示.
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  相似匹配句对
     Structurevibration and pressure fluctuation;
     动水压力脉动及建筑物的振动;
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     Effects of Fluctuation Pressure on Cavitation
     脉动压力对空化的影响
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     pressure;
     压力;
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     At the pressure >1*!
     当气压高于 1Pa时 ,得到厚度很小的ZnS薄膜 ;
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     Stability variance.
     ②稳定性方差。
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In view of the imperfectness of theory of Coarse Particles Fluidization,the distribution of pressure and pressure fluctuation in a two-dimensional fluidized bed composed of Geldart D powders were researched to enrich it.And this result and the result by the high-speed photography shot were brought into contrast.It was found that the law of pressure distribution in a two-dimensional fluidized bed is expressed by Δp=p_i-p_j=ρ_pg(1-ε)(h_j-h_i).The variation law of the pressure fluctuation variance,i.e.the...

In view of the imperfectness of theory of Coarse Particles Fluidization,the distribution of pressure and pressure fluctuation in a two-dimensional fluidized bed composed of Geldart D powders were researched to enrich it.And this result and the result by the high-speed photography shot were brought into contrast.It was found that the law of pressure distribution in a two-dimensional fluidized bed is expressed by Δp=p_i-p_j=ρ_pg(1-ε)(h_j-h_i).The variation law of the pressure fluctuation variance,i.e.the value first reduces,then increases and reduces again,Lorresponds with the bubbles generated in the bed,i.e.the bubbles first from,then rise and grow and finally they break up.In addition,from the high-speed photography photos,it was found that the bubbles always develop towards the party with higher material aspect in the bed.

由于目前大颗粒流态化理论还很不完善,为了丰富大颗粒流态化理论,对G e ldart D类不同物料组成的二维流化床的压力及压力脉动分布规律进行了研究,并将其结果同高速摄影仪拍摄到的结果进行了对比.试验发现:床层压力分布规律可近似的用公式Δp=pi-pj=ρp(1-ε)(hj-hi)来表示.压力脉动分布规律主要是流化床中气泡行为的反映:压力脉动方差值的先减小,后增大,最后又减小的变化规律对应着流化床中气泡的产生,均匀上升,聚并长大,而后破裂的规律.另外,从高速摄影照片发现床层中气泡发展方向总是向着料层面较高的一方发展.

 
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