查询词典 first-order theory

Single loop instantaneous voltage feedback control and multiple loop feedback control, which can be realized by digital method or analogue method, are normal control strategies of inverter. The controller's performance of a same control strategy designed by different designers is different This paper makes out uniform analysis and design theory of inverter control strategies with pole-assignment technique of state-space theory for the first time. It is firstly proposed that controller parameters being equal to control system orders is the base of realizing high performance inverter. Design and performance comparability of various controllers is presented with uniform pole-assignment method.

本文首次采用状态空间理论的极点配置技术，对逆变电源的几种控制策略进行了统一的分析和设计，首次提出控制器控制参数与控制系统阶数相等是高性能逆变器控制实现的基础，并通过极点配置这种统一的设计方法对各种控制器进行了设计和性能比较，分析了要考虑的一些非理想因素的影响。

The company has been with the aim of " quality first, reputation first, consumers first " all the time, rely on strong technological research and development strength, scientific and exact quality management system, in line with the professional, absorbed, attentive management theory, make great efforts to court customer's biggest and satisfactoriest service, After years of development, it is qualified to be up to standard that the a full range of products of our company pass the national product quality of health bureau, ISO9001: authentication such as 2000 international quality systems, make products brand and prestige on quality of the company further integrate with the international standard, thus promoted the expansion of the domestic and international markets greatly.

公司一直以"质量第一、信誉第一、用户至上"的宗旨，凭借强大的技术研发力量，科学严谨的质量管理体系，本着专业、专注、专心的经营理念，努力追求客户最大满意的服务，经过多年发展，我公司全线产品均通过国家卫生局产品质量合格达标，ISO9001：2000国际质量体系等认证，使公司的产品品牌与质量信誉进一步与国际标准接轨，从而又大大推动了国内外市场的拓展。

Her theory that this signalled the advent of a misogynistic climate has been challenged by some critics, who point out that the period saw the first female evening network-news anchor, Harvard's first female president and America's first female secretary of state.

她认为这种现象标明了嫌忌女性这种大气候的出现，而这个观点受到了某些批评家的反对。他们指出，时代见证了我们的首位女性晚间新闻主持者、哈佛的首位女校长，以及美国的首位女国务卿。

Compared with the first stage, research of this period has the multi-dimensional characteristics, which is the important part of this paper. In the first chapter, we introduce the development of communicative structural theory in the first stage, summarizing scholar's viewpoint on some elementary theoretical questions, such as the standard and the method of actual division of the sentence, the categorical sentence and thetic sentence, the relations between the syntactic division and the actual division, theme/ rheme and given/new.

在绪论中，我们介绍了交际结构理论第一阶段的发展情况，主要是综述学者们对交际结构的层次归属、实际切分与句法切分的关系、实际切分的标准与手段、可切分句与不可切分句、主位／述位与已给／新给之间的关系等基本理论问题的观点，并对其中的一些问题阐述了自己的认识。

Compared with the first stage, research of this period has the multi-dimensional characteristics, which is the important part of this paper.In the first chapter, we introduce the development of communicative structural theory in the first stage, summarizing scholars viewpoint on some elementary theoretical questions, such as the standard and the method of actual division of the sentence, the categorical sentence and thetic sentence, the relations between the syntactic division and the actual division, theme/ rheme and given/new.

在绪论中，我们介绍了交际结构理论第一阶段的发展情况，主要是综述学者们对交际结构的层次归属、实际切分与句法切分的关系、实际切分的标准与手段、可切分句与不可切分句、主位／述位与已给／新给之间的关系等基本理论问题的观点，并对其中的一些问题阐述了自己的认识。

First, the philosophers advocate the wholism, the internal origin theory and organic theory in the field of nature theory.

任何思想的产生都有其渊源和学术背景，先秦诸子之经济思想也不例外。

First chapter of the article introduces the writing background and the overall frame, the second chapter reviews and evaluates the tradition motivation theory and the near modern spirit motivation theory, the third chapter lists the positive role and the limitation of existing motivated theory in the business management practice.

本文第一章介绍文章的写作背景及总体框架，第二章对传统激励理论及近现代的精神激励理论进行了回顾和评析，第三章对现有激励理论在企业管理实践中的积极作用和局限性进行了研究，第四章重点阐述了基于新人性论的精神激励原理研究，第五章论述了新精神激励方法与管理机制。

First, according to knowledge and theory about information theory, control theory, safety system engineering and manpower resource, a safety management model adapt to local coal mines is given. And then several sub-module in the model are discussed, including safety target management and duty tracing system, three-class hidden trouble exclusion and closed-loop safety information management system, safety and technology management system, accident analysis and prediction, safety culture and management of person with ability,"double foundation" construction, emergency and succor system, and management system that serves for safety production. Particularly two sub-module—safety management model" running mode and "double foundation construction are emphatically discussed here.

论文首先根据信息论、控制论、安全系统工程以及人力资源管理等学：科的有关知识和理论，研究设计出符合地方煤矿实际情况的安全管理模式，然后对本模式包含的安全目标管理与责任追究体制、三级隐患排查和闭环式安全信息管理系统、安全与技术管理体系、事故分析与预测、安全文化与人才管理、&双基&建设、应急救援体系、服务于安全生产的管理制度等子模块展开论述，特别是对安全管理模式的运行方式和&双基&建设进行了重点论述。

Using two literary theory, first one is "The Mirror and the Lamp" the represented the four elements of literary theory, second is the representative of Western Marxist literature theory about activities, those two theories determined the relationship between language and literature made with four elements and literary production activities whole relationships.

通过运用两大文学理论，以《镜与灯》代表的文学四要素理论和西方马克思主义代表的文学活动生产理论，最终确定了语言和文学关系是：文学语言和文学体系四要素、文学生产活动所有关系的总和。

This paper is divided into five parts. The first part defines the fundamental conception of animacy and summarizes the research on animacy which is carried out at home and abroad. Besides it sums up the linguistic theories which are used in this paper. They are X-bar theory and 0-theory of Transformational and Generative Grammar, topic and focus theory of Contemporary Pragmatics and linguistic subjectivity and subjectivisation of Cognitive Grammar.

论文分为五章，第一章是对生命度初始概念的界定和国内外语言学界对生命度研究的综述；并简要概括了本文使用的语言学理论——主要有生成语言学的题元理论、当代语用学的话题与焦点理论以及认知语言学的语言&主观性&和&主观化&理论。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。