The circulation concentration is determined from the refrigerant differential holdup in heat exchangers.

系统的循环浓度根据换热器中制冷剂的分馏滞留程度来计算。

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The effect of reaction temperature, reaction pressure, catalyst concentration, ammonia circulation rate, condensing temperature on fatty nitriles reaction rate, yield, energy demand are discussed.

讨论反应温度、反应压力、催化剂的浓度、氨循环速率、冷凝温度对脂肪晴的反应速率、得率、能量消耗的影响。

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Proper combination of simple extraction and circulation extraction can increase yield and extract concentration simultaneously on the basis of assurance efficiency.

将简单提取和循环提取适当组合能够在保证效率的基础上使收率和提取液浓度有较大提高。

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While the southern coast of Spain was once believed to have the highest concentration of 500-euro notes in circulation, the distinctive purple bill has become more like the unicorn of Europe because they are rarely seen.

FORBES: France Plans To Prohibit Cash Payments Over ��1,000