The simulation result shows: the windward of pipe have a better heat exchange effect than the leeward;

研究结果表明：换热管翅片迎风面换热效果明显高于背风面；

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Results indicate that the selection of the optimum temperature for the exchange effect depends on the column pressure.

结果表明：在选择催化交换温度时须考虑压力条件。

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An improved scheme is presented to raise the heat exchange effect of annular nitrating pot, based on the simulation values of the fluid field in the current annular nitrating pot.

在对现有环形硝化器内部流场的分析模拟结果的基础上，提出改进的方案，以求提高环形硝化器的换热效率。

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This exchange will take effect in four years, which will give us time to do it right.

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Third, there is an exchange-rate effect: a rise in interest rates pushes up the currency and so squeezes exports.

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But new Securities and Exchange Commission regulations set to take effect later this year breathed fresh life into the exchange world and gave Wall Street an idea that there were benefits to be reaped.

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