characteristic adj. 有特性的;表示…特性的,…特有的。 Japan's characteristic art 日本特有的艺术。 n. 特性,特征,性能,特色。 be characteristic of …所独有的特征,有…的特色。 characteristic of logarithm 对数的首数。 adv. -cally
This paper analyses the type , function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback . that is , basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination . , determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic , the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop , and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination 本论文分析了目前常用比例阀的类型、功能、特性,并针对其不足提出新的改进方案,即:以流量放大,电反馈两个原理为基础,通过对流量闭环控制及压力流量复合的计算分析、确定上最小控制压差及流量控制范围,确定主阀结构、功能特性研究等,提出了“流量? ?负载压力变化? ?位移修正”的控制原理和压力流量双闭环控制原理,并进一步论述了利用一个比例控制器和一个“电?机械转换器”就可完成独立的压力或流量控制功能以及流量压力复合控制功能。
The work that writer did shows as below : ( 1 ) after looking back the characteristic of drawing and document management system used in each period and analyzing their defects , the writer brings forward the function and characteristic that a whole drawing and document management system must possess at present 具体的工作有以下几个方面: ( 1 )回顾各个时期图档管理系统的特点,分析这些系统的不足之处。指出在目前的技术条件下,一个完整的图档管理系统应具备的功能及特征。
And then , linking erp , bpr system ideologies and information technology , the author designs reengineering program of hb company to the major business processes , which includes method of material coding , sales management , choose and purchase management , production control , stock management , outside cooperation management , etc . the functions and characteristics of the new scheme are analyzed and described in detail 然后,结合erp与bpr等系统思想与信息技术,对hb五金公司物料编码以及销售管理、采购管理、生产控制、库存管理和外协管理等主要业务流程进行了重组方案设计。对新方案的功能和特点进行了分析说明。
In first part , the main function and characteristics of chemstation are introduces in details . in the second part , the method of the object - oriented , the features of uml and rose served as the visual development environment of uml are summarized . in the last part , some standards and criteria of chromatography data are mentioned , such as unified chromatography data style technology and glp ( good laboratory practice for nonclinical laboratory studies ) 从总体结构上分为五大部分,这几个部分的主要内容有:在第一章中,简述了色谱数据处理软件和它的应用范围,然后简要的说明了选题背景和意义在第二章中,首先以色谱工作站n2000为例,介绍了色谱工作站的主要功能和特点;然后概括了面向对象的方法和uml统一建模语言以及可视化开发环境rose的特征;最后介绍了与色谱数据相关的标准和规范,如统一的分析数据和质量信息标准和glp (非临床优良实验研究规范) 。
This paper based on the research of structure , function and characteristic of domestic - and abroad network monitoring system , a design method for one kind of distributed network monitoring system based on the agent software technology has been proposed , which is aiming at the existing problems concerning centralized network monitoring system 本文在研究了目前国内外网络管理监控系统的结构、功能及特点的基础上,针对集中式网络监控系统存在的问题,提出了一种基于软件agent技术的分布式网络监控系统的设计方法。
In this thesis , the author builds a structure model of vc and discusses the function and characteristic of the venture capital , vc market , vc institutions , venture enterprises , intermediary institutions , related laws and regulations and government . the advantages and disadvantages of the vc system are also analysed . how to develop the vc 根据风险投资与风险投资体系的辨证关系,提出风险投资体系的构成模型,并对其构成元素? ?风险资本、风险资本市场、风险投资机构、风险企业、中介服务机构、法律法规以及政府? ?在体系中的功能与特点,以及风险投资机制的积极效应与负面效应逐一展开详细论述。
In this part , the history of the development of party school and the main achievements in the last twenty years " development are summarized . besides , the stages of development of party school in the university are divided for the first time . meanwhile , in this part , the necessity and significance of part school in the new century is proved , with achievements analyzed , important documents quoted to state the status , function and characteristics of party school in the university 该部分回顾和总结了高校党校发展的历史进程以及二十多年建设和发展所取得的主要成就,并首次对高校党校发展的历史进行了分期;同时通过对成就的分析,并引用重要文献阐明了高校党校的地位、作用和特征,旨在说明新世纪新阶段发展高校党校的必要性和重要性。
Based on the functions and characteristics the occupational pension had under the multiple - arrangement of endowment insurance system , this chapter made discussions of the application of these theories about occupational pension ' s tax policy , then author confirmed the rationality of the occupational pension ' s tax policy . immediate later , by using the two life - cycle models , this chapter discussed the microscopic economic effect of the occupational pension " s tax policy , then author confirmed it is necessary for our country to implement a favorable tax policy to the occupational pension plan 本文就是以企业年金税收政策这一既具有理论性又具有现实性的问题作为研究的对象。论文遵循理论依据? ?作用机制和效果? ?现实实践? ?政策完善的基本思路,首先对税收优惠的基本理论进行了分析,在阐述其存在并发生作用的基础上,结合三支柱养老保险体系下企业年金发挥的作用和所具有的特点,讨论税收优惠政策的理论应用,论证了企业年金税收政策作为推动企业年金发展手段的合理性。
Then the thesis introduces the definition 、 functions and characteristics of programmable controller and the main factors which should be considered while choosing programmable controller . the thesis also gives an introduction about the general situation and technical essentials of profibus and the general situation of the use of as - i master series connection between sensor and actuator 随后分别介绍了可编程控制器的定义、功能和特点,以及选择可编程控制器时应考虑的主要因素,介绍了现场总线( profibus )的概况和技术概要,介绍了传感器和执行器用串行总线as i的概况。
Based on the above - mentioned research , the architecture designing project of the lcs system is provided in this thesis , including the whole structure designing and the interface designing ; the function and characteristics of the lcs system are also introduced ; then this thesis presented the software structure of gmlc which is the core component of lcs system as well ; the lcs module in the msc is introduced detaily , as the designing and the procedure of lcs module . finally , discussed the test problem of the lcs system and pointed out the shortage and improvement suggestion 在上述研究的基础上,本文给出了位置业务( lcs ,全称locationservice )系统的总体设计方案,其中包括定位系统的总体结构设计、接口设计和定位系统的功能、特点的介绍;阐述了定位系统中的核心组成部分-网关移动定位中心( gmlc ,全称gatewaymobilelocationcenter )的软件体系结构;详细介绍了移动交换中心( msc ,全称mobileswitchingcentre )中定位模块的设计和定位流程的实现过程;最后讨论了有关定位系统的测试问题,并指出了系统的不足之处和改进意见,以及需要进一步研究和探讨的问题。