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1)  strike-and-dip symbol map
走向和倾角符号图
2)  strike pitch
走向倾角
3)  sign and graph
符号和图形
1.
There are such kinds of mathematics idea and method as sign and graph, function, inversion; discussion and so on in the mathematics teaching in the middle school.
用数学思想方法指导学生的学习,数学会变得更容易理解和掌握,中学数学中常见的思想方法有符号和图形思想、函数思想、转化与化归思想、分类讨论思想等等。
4)  signed directed graph
符号有向图
1.
After analyzing the information transfer characteristics of large-scale complex systems,a new fault description model-fuzzy probability signed directed graph(FPSDG) was proposed by introducing the status association probability,fuzzy information and object-oriented technology in SDG.
通过分析复杂系统的故障信息传递特性,在符号有向图(SDG)中引入了状态关联概率和模糊信息,并结合面向对象技术提出了一种新的故障描述模型——模糊概率有向图。
2.
Signed Directed Graph (SDG) is used for a mathematical model representing the influences among elements of the system, which considers the characteristic of system’s structure and can deal with the complex process of system in a large-scale, and it is a self-contained method to diagnosis system failures.
基于符号有向图(SignedDirectedGraph,SDG)的定性推理方法用有向图将故障传播模型化,并用节点间的符号逻辑关系定位系统的故障源,是一种完备的揭示系统故障的有效方法。
3.
There are two topics about the method being given: fault propagation digraph and signed directed graph( SDG) .
该文给出了基于图论的故障诊断原理,综述了基于图论的故障诊断研究现状,包括两种主要方法:基于故障传播有向图和基于符号有向图的诊断方法。
5)  SDG
符号定向图
1.
Recently,the marked development of qualitative simulation research based on the signed directed graph (SDG) has led to SDG be the most effective method in fault diagnosis.
近年来,基于符号定向图(SDG)模型的定向仿真研究取得了很大进展,使得SDG成为过程系统故障诊断方面的最有效的方法。
2.
Aiming at the difficulty of quantitatively description of the problem that the information is ambiguous,incomplete,comparatively illegibility in the process of material supply simulation,a sign-directed graph(SDG) method of qualitative simulation is introduced to analyze the material purvey process in qualitative way.
针对物资供应过程仿真中仿真信息不明确、不完整、比较模糊而又难于定量化描述的问题,引入定性仿真中符号定向图(SDG)法,定性分析了通用物资供应的过程。
3.
The deviation of SDG node is fuzzed as qualitative fuzzy deviation,and the new deviations of child nodes are fused into the possibility of fault source of parent node with the analysis of the character of fault information transfer and the adventage of dealing with different malfunction cases.
将符号定向图SDG(Signed Directed Graph)节点偏差模糊化为定性模糊偏差,并从子节点向父节点对其进行数据融合,得到父节点故障源可能性,分析了该模糊融合传递信息的特性和处理各种发生故障的情形的优点。
6)  SDG
符号有向图
1.
Algorithms of SDG-based Fault Diagnosis with Unmeasured Nodes for Deaerator;
除氧器故障诊断的含未测节点的符号有向图方法
2.
Application of SDG in Chemical Hazard Assessment
符号有向图在化工安全评价中的应用进展
3.
On the basis of analyzing the theory of signed directed graph(SDG)technology,practical application of SDG qualitative model in computer aided HAZOP and fault diagnosis was discussed.
在分析符号有向图(SDG)技术的理论基础上,探讨了SDG定性模型在计算机辅助HAZOP安全评价和故障诊断中的实际应用,并针对石化领域中常用的加热炉设备,建立SDG模型进行HAZOP和故障诊断分析。
补充资料:电气文件编制和图形符号系列标准


电气文件编制和图形符号系列标准
documentation and graphical symbols standards in electrotechnology field

  djanqj叭旧n」ian bianzhj he tuxjng fuhco xilie biaozhun电气文件编制和圈形符号系列标准(doc~-tation and脚Phicals卿肠185切Lnd助ds in elec-tiDtechaol卿field)电气技术领域的工程语言。均系采用IEC标准。国家标准规定了系统图、框图、逻辑图、电路图、接线图、接线表、位t文件、安装文件、功能表图等文件的编制规则;电气图形符号标准,包括电气简图用图形符号和电气设备用图形符号。电气简图用图形符号标准,规定了它的设计、派生、组合原则及各专业用图形符号16】)多个;电气设备用图形符号标准,规定了与人相关的设备上所用图形符号的设计原则和具体符号酬刃个左右。此外,还有一些标准规定了计算机编制文件(图)及电气元器件建库相关要求。 以上标准适应了电气文件编制中对新产品、新技术、新符号的需要,逐渐满足了计算机辅助设计的要求,并对标准数据集的确认、维护、管理做出了规定,从而对工程设计中的标准数据信息交换创造了条件。使电气系统、装置、设备的设计人员按国际通用的规则和语言绘图,使生产管理、操作、维修人员能更方便、更快捷地了解一个系统、装置、设备的总体功能和结构层次,识别文件中每个项目的信息。同时,也为规范电工电子产品(包括软件)市场,加强市场宏观管理,强化对产品整体质量的监督检查提供了依据。(郭汀)
  
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