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The chain between air valve operational rule and bed stratification is set up, which supplies the reliability for control decision-making of expert system. Expert control strategy is put forward based on the characteristic of jigging process in this article. Knowledge acquisition, knowledge expression, search method and reasoning mechanism are studied in the expert system. The rule-base is set up based on bed stratification status, bed mobility status, feed velocity, recording data on site, artificial float and sink test result.

本文根据跳汰过程的特点，提出了专家控制系统的构成框架，研究了分层过程控制专家系统的知识获取、知识的表示与检索方法及推理机制，并根据分层状态、床层松散状态、给料速度信息和现场运行记录及定时人工筛分浮沉结果进行推理，建立了专家系统规则库，给出了具体的风阀操作参数的调节方法。

Chapiter 2 discusses the theory of assets portfolios, which starts to analyze investor, arid deduces framed investor"s feasible set arid efficient set, discUss different forms and characteristic of efficient portfolio, and systematic analyzes the effect of portfolio, risk diversification, followed briefly summarizes the formation, development, application and limit of the "theory of portfolio, created by Markowitz.

本章从投资者开始分析，给出了框定投资者的可行集和有效集，并讨论了各种不同的有效组合类型及其性质，同时系统研究了资产组合的效应——风险分散，最后简要综述了马柯维茨投资组合理论的产生、发展、应用与局限。

Besides, it is possible to set a string or character set for viewing.

此外，是有可能订出一个字符串或字符集观赏。

The second and third tags set the language and character set for the page.

第二个和第三个标签设置了网页的语言和字符集。

You can set a character set and it "dictates" you some random text.

你可以建立一个字符集，它可以向你"说"一些随机文本。

In mathematical terms, the character set defines the set of all characters used in a language.

字符集以数字形式定义了一种语言中使用的所有字符。

A complete set of characters and corresponding integers is a coded character set.

一个完整的字符集和对应的整数一起称为"编码字符集"。

We analyse the characteristic of support vector set and the possible change after new samples are added to training set.

第三，通过概括支持向量集的特点及其在增量学习过程中的变化，我们分析比较了几种现有的SVM增量学习方法，并对它们在中文网页分类器中的性能进行了对比。

Finally, we put forward the concept of differential characteristic set modulo with respect to a polynomial and present the properties of the characteristic set.

最后，对微分特征列集理论进行了推广，给出了微分多项式系统的模微分特征列集的概念，并研究了其具有的性质。

But, though the Doctor tried hard, and never ceased trying, to get Charles Darnay set at liberty, or at least to get him brought to trial, the public current of the time set too strong and fast for him.

现在不同了，他知道那过去的考验已给了他力量，而女儿和朋友正把查尔斯最终安全获释的希望寄托在他的力量上。他为这一变化而欣喜。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。