Relationships of pressure drop across the packing zone with the apparent velocity and flooding volocity with spraying density are obtained.
找出了填料层压降和空塔气速的变化关系，泛点气速和喷淋密度的关系。
For high permeability and loose sand in bohai, these links are composed of wire wrapped screen, gravel packing zone, perf, skin and near wellbore undisturbed formation.
具体到渤海高渗透疏松砂岩，这些环节包括绕丝筛管、砾石充填层、射孔孔眼、压实带及近井原状地层。
By packing players into the lane, a zone can make driving to the basket more difficult for Wade and James.
防守球员站成线，区域联防使得詹姆斯和韦德这种喜欢攻击篮筐的球员难以轻松得分。
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