均匀分布

At the same time, a mathematical equation was developed to generate different types of fluid flow maldistribution models considering the possible deviations in fluid flow.

换热器内部流体的不均匀分布，会引起换热器整体效能和机械性能的下降，对该问题的研究，已引起国内外学者的重视。

It was known that the mass transfer in the packed column was influenced by the "natural"flow. In this paper, the process of forming the"natural"flow was analyzed. By changing the geometric dimensions of the structured packing, the maldistribution of the"natural"flow could be decreased.

以往的研究表明，填料塔传质效率的下降与液体"自然流"的形成有关，本文通过研究液体的微观流动，对规整填料塔内"自然流"形成的原因进行了分析，指出了填料结构与"自然流"形成的内在关系，并提出了改变填料结构，以降低"自然流"不均匀分布的方法。

Therefore, with considering threshold pressure gradients and the maldistribution of threshold pressure gradients caused by reservoir heterogeneity, it will be more objective and better to forecast the production performance of gas wells and guide low-permeability gas reservoirs practical production.

因此，考虑启动压力梯度和由储层非均质性引起的启动压力梯度非均匀分布能更为客观的预测气井单井生产动态，为气田合理开发提供可靠的决策依据。

In order to enhance wear-resisting performance of the internal combustion engine piston ring,matrix microstructure and radial elastic force of the piston ring,the matching between piston ring and cylinder were analyzed.

为提高内燃机活塞环的耐磨性能，分析了活塞环的基体组织、径向弹力及活塞环与气缸套的匹配状况对其耐磨性的影响。试验表明活塞环的基体组织以细粒状珠光体或回火索氏体、石墨呈细小均匀分布为佳；活塞环的径向弹力大小应适宜，一般为

The chemical structure and morphology of nano\|composites were characterized by Fourier transform infrared spectroscopy and transmission electron micrography.

实验结果表明，纳米SiO2 颗粒均匀分布在聚氨酯中，并与聚氨酯的基团发生了反应；聚氨酯 SiO2 纳米复合材料具有较纯聚氨酯树脂更高的模量和内耗峰强度。

In the study, the measured point coordinates were considered to conform to uniform distribution. Based on the decision rules of minimum condition, the uncertainty property of the reference line and its solution were proposed.

假设测量数据点坐标服从均匀分布，基于最小条件的判定准则，讨论了参考直线的不确定性，并提出了处理方法。

In this case the PI was totally miscible with the amorphous PVP.

当PI含量＞40％，SEM显示有均匀分布的、棒状PI微晶存在。

In two cases with uniform initial By distribution, the recurrent f ormation and successive ejection of flux rope structures are illustrated un der the action of plasma inflow caused by the dawndusk electric field. It is n oticeable that in the cases with the modificative terms, a reduction of the aver aging magnitude of peak pressure and a considerable enhancement of the av eraging strength of core magnetic field are exhibited for the multiple magneti c structures.

对于 初始By分量为均匀分布，受晨昏电场产生的边界入流作用，磁尾通量绳结构重复形成与逐一排放的两个算例，计入修正项后，多重磁结构峰值压强的平均值降低，核心场的平均值明显增大。

In order to select the reasonable method,using water drop penetration time and the Molarity of an Ethanol Droplet technique,soil water repellency in Leymus chinensis grassland in Xilinhaote region of Inner Mongolia was determined.

土壤斥水性不利于农业生产和环境的可持续性发展，如导致土壤水分的不均匀分布[2]；使水中携带的溶质更快地进入地下水[3]；降低土壤持水能力，加强地表径流和侵蚀[2]。

Compared with Ni-A coating, Ni-B coating has only needle-shaped Cr rich phase distributing in the spray coating uniformly.

Ni-B样品喷焊层内只有针状富Cr第二相，在整个喷焊层内均匀分布。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。