It is shown that background porosity reduces internal pressure fluctuation and this effect can be predicted accurately by using the governing differential equation deduced in this paper.
研究结果表明本文推导的方程能准确的预测背景孔隙对风致内压响应的影响，能为工程抗风设计提供有效的理论依据。
Theoretical analysis and wind tunnel tests were carried out to study the influence of background porosity on wind-induced internal pressure response for structures with openings.
通过理论分析与风洞试验研究背景孔隙对开孔结构风致内压响应的影响。
Porosity is one of the important parameters in medium and high consistency pulp porous medium characterization and pulp internal structure study.
孔隙率是表征中高浓纸浆多孔介质特性和研究纸浆内部结构的重要参数。
Hence, when the slab is subjected to the liquid core pre-rolling, it will be possible to obtain a refinement of the internal structure by reducing the central porosity as well as the segregation.
因此，当板坯经历液芯预轧制的时候，将可能会通过减少中心多孔性和分离来获得内部结构的精制。
Igneous rock with strong magnetic susceptibility, leading to strong internal magnetic field gradient, and to T2 spectrum forward and NMR porosity decrease.
火成岩具有强磁化率，导致火成岩孔隙内部产生强磁场梯度，使火成岩的核磁测井T2谱发生前移、核磁孔隙度减小；
Center segregation and center porosity will seriously affect the internal slab quality for continuous casting bloom.
连铸过程中出现的铸坯中心偏析和中心疏松会严重影响铸坯内部质量。
Sensitivity index of external stress is only affected by sensitivity constant, while index of internal stress is affected by both sensitivity constant and porosity.
岩石的外应力敏感指数仅受敏感常数的影响，岩石的内应力指数受敏感常数和孔隙度的共同影响。
Sensitivity index of external stress is only affected by sensitivity constant, while index of internal stress is affected by both sensitivity constant and porosity.
岩石的外应力敏感指数仅受敏感常数的影响，岩石的内应力指数受敏感常数和孔隙度的共同影响。
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