Originally the preventer was linked to the Deepwater Horizon by a mile long vertical pipe called a riser, through which oil would flow.

最初，防喷器与深水地平线平台由一根一英里长的垂直管相连，这根管子叫做立管，石油既由此通过。

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Although it is part of the ebb and flow of a long distance runner's life, there are ways to guide yourself through this phase with a smile on your face.

尽管这是长距离跑步者生涯潮起潮落的一部分，我们确实有办法使您面带微笑地走出这一困境。

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"You flow gas from the samples through fairly long tubes that are specifically designed to separate out the different constituents of the gas, " Vasavada said.

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