地球动力学分析表明，古中元古代时，海南岛西部可能经历了一次由“开”向“合”转变的构造演化史。

Geodynamic analysis shows that the tectonic evolution history from "spreading" state into "closing" state might have happened in Paleo Mesoproterozoic age on western Hainan.

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目的本实验观察心肌康颗粒对正常麻醉开胸犬血流动力学的影响。

Objective To study the effects Xinjikang granule on hemodynamics in anesthetized chest-open dogs.

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真实网络往往都具有无标度特性，开-关间歇振荡是网络动力学行为发生转变时的一个现象。

Many real networks display a scale-free feature. The on-off intermittency, a phenomenon in complex networks, characterizes the dynamic behavior when changed.

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