For guaranteeing the gravel packing quality, the gravel packing quality test and packingeffect evaluation were carried out in the two Wells under operation.
为确保砾石充填质量，对作业中的两口井进行砾石充填质量及其充填效果评价的试验。
2
Effect of packing material size is mainly on the column pressure and column efficiency.
填料粒径主要从柱效和压力两方面影响着制备色谱的应用。
3
The effect of ion bombardment on film packing density and moisture adsorption is examined.