The gas flow and the liquid complete the energy exchange and the material exchange between gas phase and liquid phase in the flowing process.

气流和液体在流动的过程中完成气相与液相之间的能量交换与物质交换。

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This approach is a great example of how a couple simple rules in an otherwise free-flowing creative process can make all the difference.

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That, my friends, is what superPACS are for, that is, the anonymous corporate and personal money flowing into the political process in the wake of the Citizens United ruling by the Supreme Court.

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But to stop money from overseas companies flowing into the American political process would probably take new legislation, at a time when lawmakers have been unable to agree on any sort of tightening of the rules to limit the all-powerful role of big money in politics.

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