Dynamic response for free spanning submarine pipelines due to earthquake was studied by use of an underwater shaking table.

利用水下振动台研究了海底悬跨管线在地震作用下的动力反应。

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By considering the geometrical nonlinearity, a new method for the nonlinear random vibration of a free spanning submarine pipeline is presented.

考虑海底悬跨管道的几何非线性特征，建立了悬跨管道非线性随机振动响应分析方法。

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The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes.

该膜可以不含跨越该膜的大空隙以致材料例如气体或液体的传输仅通过管子进行。

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George Bush trumped that in November by advocating a free-trade area spanning the Pacific and covering half the world economy.

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