英汉例句

• distillation columns are designed to achieve this separation efficiently.

  精馏塔的目的即有效实现上述分离。

• the invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.

  本发明适用于所有 的烃处理装置，例如炼油厂、蒸馏塔和其它石化工业装置。

• by analyzing the changes of reflux ratio, the optimum feed positions within the two distillation columns in the experimental device for double-effects distillation hgl of forward feed was determined.

  根据回流比的变化，对顺流双效hgl精馏实验装置中两精馏塔的进料位置进行了优化。

• the necessity of malfunction diagnosis of distillation columns was simply introduced in this paper.

  本文简单地介绍了精馏塔故障诊断的必要性。

• the key of design for distillation columns with structured packing is computer simulation of distillation processes.

  蒸馏过程的工艺模拟计算和设计步骤：填料选型、流体力学计算和塔内件设计等。

• fully thermally coupled distillation columns (ftc) can reduce energy consumption and capital investment as compared with conventional distillation consequences, but their use has limitations.

  热耦蒸馏与常规蒸馏序列相比可减少能耗和设备投资，但其应用有一定的适用范围。

• the change of etherification conversions against reaction conditions has been studied in reactive distillation columns at temperatures of 40~80 ℃.

  研究异戊烯和甲醇在反应蒸馏柱中以苯磺酸阳离子交换树脂为催化剂 ，在40～80℃醚化的转化率随反应条件的变化。

• then the equation was applied to the synthesis of distillation columns and good results was obtained.

  结果表明，该方程在确定精馏曲线、夹点曲线以及塔板组成线时具有快捷方便的优点。

• besides, the theoretical stages of extraction and distillation columns of this two solvents are compared by graphic method.

  用图解法比较萃取塔及蒸馏塔的理论级数。

• the distillation columns are designed based on the trays by column design software.

  在此基础上利用塔板设计软件对新工艺精馏塔板进行设计。

• in view of the control problems of the distillation columns in the butadiene plant, the advanced control strategy based on opc technique is proposed.

  针对丁二烯生产装置精馏塔中组分浓度难以控制的问题，提出了基于opc技术的先进控制方案。

• an evaluation method on operating cost and its saving of internal thermally coupled distillation columns (itcdic) of ideal mixture is presented.

  给出了理想物系内部热耦合精馏塔操作费用和费用节省的估计方法 。