Generally, such gas reservoir rock is in the uncompacted state, and their variation with pressure and petrophysical parameters is very different than normal pressure gas reservoir system.

这类气藏储集层岩石一般处于欠压实状态，岩石物性参数及其随压力的变化规律和正常的压力系统气藏相比有很大的差异。

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Predictions have been made and compared with experimental data pertaining to the centerline velocity decay and wall static-state pressure variation.

预测了壁面压强和轴心速度分布，并与实验数据进行比较，计算值与试验值吻合很好。

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Objective Study the relationship between type A influenza virus genetic variation with survival selective pressure, help for the finding of possible vaccine conserved antigen target.

目的研究甲型流感病毒基因变异与生存选择压力的关系，指导保守疫苗靶位点的寻找。

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