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The following points are emphasized:The operation models of adiabatic and diabatic distillation have been set up and the operation block, thermodynamics model and mathematical model in the simulation have been determined as well;(2)Based on the simulation and exergy analysis with Aspen Plus program, shortcut distillation design—DSTWU model and rigorous distillation design—RADFRAC model, the author has determined the heat duty, exergy losses and the distribution of exergy losses along the adiabatic column, which will help the simulation and optimization of the diabatic distillation;(3)Diabatic distillation under various operation conditions has been simulated by using energy balance method and exergy analysis;(4)How the different mixture and the various degree of separation, number of trays and feed location influence exergy saving in diabatic distillation have also been discussed;(5)On the basis of the total exergy losses along the column, different schema of the heat transfer distribution along the column have been compared and analyzed;they can be classified in three categories: heat duty equipartition approach, empirical approach, separation degree matching approach. In conclusion, different heat transfer distribution along the column will have effect on total exergy losses. In particular, most satisfactory results have been obtained by using separation degree matching approach. In order to diminish the exergy losses, heat transfer distribution should meet the needs of the request of separation degree.And on this premise, the author makes his suggestion in increasing the proportion of heat supplied to the tray with minimum exergy losses and decreasing the proportion of heat supplied to the tray with the maximum exergy losses.

本文对透热精馏过程进行了模拟并对其节能效果的影响因素做了较为全面的分析和深入的研究，主要研究内容如下：(1)建立了常规精馏和透热精馏过程的模拟操作模块、热力学模型以及数学模型；(2)利用化工模拟软件Aspen Plus并分别采用DSTWU简捷模型和RADFRAC严格计算模型对常规精馏进行模拟计算和有效能分析，确定常规精馏塔的公用工程热负荷、有效能损失及有效能损失在塔内的分布，为透热精馏的模拟和优化提供数据参考；(3)对不同物系在不同分离度条件下进行透热精馏的模拟，分别采用能量衡算法和有效能分析法进行计算和分析；(4)探讨了各种因素如物系的选择、不同分离度、塔板数、进料位置对透热精馏节能效果的影响；(5)以全塔总有效能损失为比较基准，对热量在塔内的三种分布方案即热负荷平均分配法、经验法和分离度匹配法进行了对比分析并得出结论：塔内热量的不同分布方案对于全塔总有效能损失会产生影响，其中以分离度匹配法的节能效果最为理想，为减少有效能的损失，应使塔内的热量分布满足各塔板的分离度要求，并在此前提下，尽量减小有效能损失大的塔板的热负荷和增加有效能损失小的塔板的热负荷。

We designed and simulated the ethylamine separation system using Aspen Plus. The optimal parameters such as theoretical plate number and reflux ratio were obtained.

利用模拟软件Asp-en Plus对乙基胺分离系统进行了设计和模拟计算，得到了各塔理论板数和回流比等设计参数。

In implementation,Apple Ⅱ plus′s internal memory can be expanded virtually to over 192K by technically efficient use of 64K card or 128K card.

在实现上技巧地应用128k 卡，可将 Apple Ⅱ plus 机的内存"虚拟"地扩展到192k 以上，实现了 CP/M 的造字功能。

According to all of Synchronous Digital Block diagram of the frequency measurement using VHDL,the successful preparation of the design process,and in MAX+PLUS II software environment,the preparation of procedures for VHDL simulation,obtained very good results.

根据全同步数字频率计的测频原理方框图，采用VHDL语言，成功编写出了设计程序，并在MAX+PLUSⅡ软件环境中，对编写的VHDL程序进了仿真，得到了很好的效果。

In the max-plus environment, using vhdl language component with half adder full adder function.

详细说明：在max-plus 环境下使用vhdl语言实现用半加器组成全加器的功能。

I think that is in a large part due to the quality of the speech synthesizer, which is made by Speech Plus.

我想大部分原因是声音合成器的质量很好，是由Speech Plus生产的。

In actuality, the new site speed signal is just one of the 200-plus signals used by the company.

事实上，这个新的网站转速信号的200-plus恰恰是一种信号的公司。

Take a tip out of Tom Kyte's practice: use cut'n'paste from SQL*Plus to demonstrate that what you have asserted is in fact the case.

可以从 Tom Kyte's practice 当中得到一些参考：用从SQL*Plus拷贝粘贴过来的代码来说明你所说的事情都是实践过的。

The two attic guesthouses are situated on the top floor and the decoration is very luxurious. At Penthouse Plus, a large-scale bath, laconicum, record platform and private cocktail pubs are all available.

酒店两间阁楼套房位于顶层，装潢皆极尽豪华，其中Penthouse Plus更特别设有一座超大型浴池、蒸汽浴室、唱片骑师台，以及设有私人酒保的鸡尾酒酒吧。

Pure Lanolin Plus is recommended that amounts be adjusted according to individual coat needs and amount of time between groomings.

Pure Lanolin Plus 建议产品的使用量及使用的次数要根据各自犬的被毛而定。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。