People usually think that closure theory is tautology.

人们通常认为，闭合论是重言式。

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Closure theory is an important argument form of skepticism.

闭合论是怀疑主义的重要论证方式。

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On the base of large experimental data set, the influence of effective pressure on rock velocities is analyzed with regression method and the theory of crack closure.

根据大量的实验资料，本文分析了砂岩样品的纵横波速度和有效压力的关系，对实验结果进行了回归分析，并用裂隙闭合理论进行了解释。

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Jude trial and believes the study supports the PFO-closure theory.

WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure

He said he believes the study supports the theory of PFO closure, but that concerns about overuse could make regulators cautious.

WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure