查询词典 schema

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。

It is showed that the fitting deviation of the traditional schema theory is 2 times and 3.4 times more than the equivalent form in the paper.

实验结果表明，传统模式拟合误差分别是所描述的种群最优模式增长方式的2倍和3.4倍。

The schema composed by a group of equivalent propositions was said to proposition field.

与一个命题等价的命题集的图式叫做这个命题的命题域。

A new Double Layers Chromosome Coding Schema and a new Subtour Exchange Algorithm are proposed for Capacitated Vehicle Routing problem.

4对于带能力约束的车辆路径问题，提出了一种新的双层染色体编码方案和一种子路径交换算法。

The main idea of experientialism is that language reflects the concepts in human mind; our embodiment experiences help us achieve many kinds of cognitive models including conceptual metaphor, conceptual metonymy, image schema, and frame; these cognitive models are reflected in our linguistic expressions like the idioms.This paper focuses on three kinds of semantic motivations: metaphor, metonymy and general knowledge.

经验主义认知观认为语言反映了人们根据经验在头脑中形成的概念；人们根据共同的经验形成了各种各样的概念结构，包括隐喻概念，转喻概念，意象图示，框架，情景等，这些概念结构通过语言形式表达出来，成语就是其中一种。

The metadata captures common constraints expressible in XML Schema and relational models (for example, occurrence constraints).

元数据获取使用 XMLSchema 和关系型模型中表示的普通约束条件。

We establish mathematical models of optimal operation schema, and to solve them by feasible direction method and linear approximation.

在管网布局的基础上，以管网投资净现值为目标，建立了管网结构参数优化模型，并充分考虑了输气量、管径、输气压力、管长、增压比、压缩机数目之间的关系，采用混合变量优化方法进行求解。

The application of XML Schema in substation IED configuration for feeder line protection is introduced and discussed with examples.

举例论述了XML Schema在变电站馈线保护IED配置中具体的实现方法，对变电站智能电子设备的配置进行了初步探讨。

THE NEXT STEP IS TO PASS THIS SCHEMA FILE TO THE MDB MANAGER.

下一步是把这个 SCHEMA 文件传送给 MDB 管理器。

Please see the schema of the XML file for the type which the application can be used.

请看到的该应用程序可以使用的类型的XML文件的架构。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。