The mechanism and the extent of action of polymer solution's depleted layer effect and viscoelastic effect on displacement efficiency and sweep coefficient.
通过聚合物溶液在不同模型中的驱油实验，研究了聚合物溶液的衰竭层效应和粘弹性效应对驱油效率和波及系数的作用机理和作用程度。
Reservoir heterogeneity can lead to uneven waterline forward on flat moreover that will result in water breakthrough too early. Thus the area sweep coefficient was affected.
油藏非均质性严重，就会导致平面上水线推进不均匀，使生产井过早见水或水淹，从而影响水驱面积波及系数的大小。
Changes of sidewall sweep Angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flow field.
侧板后掠角大小和整流罩位置变化时，对进气道的质量捕获、总压恢复系数和隔离段出口流场的均匀性等都有一定的影响。
Objective: To establish a simple rapid method for determining Kjeldahl nitrogen content by 1st order differential coefficient single sweep polarography.
建立用一阶导数单扫描极谱法测定食品中凯氏氮含量的简单、快速的方法。
Objective: To establish a simple rapid method for determining Kjeldahl nitrogen content by 1st order differential coefficient single sweep polarography.
建立用一阶导数单扫描极谱法测定食品中凯氏氮含量的简单、快速的方法。
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