查询词典 simplifies

The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.

本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件，并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括：(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架，分析面向地理特征的制图综合的核心理论支撑，在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征，用图论对水系网进行描述。以树状水系作为主要研究对象，依据树状水系的主支流交汇关系确定水系流向，依据水系中主流的长度最长和主流保持原有的流向趋势确定主流，按此递归得到河流的不同级别，对基于河段组织的水系网结构化，自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型，对结点、河段、河流和河系的数据进行有效的组织。

Article submitter simplifies the article submission process to save you time.

文章提交文章提交者简化程序，以节省您的时间。

According to the definition and the distribution of VSR's voltage space vector, the introduction of a rule-based SVPWM current control strategy, with non-fixed switching frequency and dual hysteresis loops, that obviously improves the performance of current control. Based on two kinds of control strategies of VSR under unbalanced grid condition, the introduction of a new VSR control strategy featuring undamped-oscillation that simplifies the controller structure and effectively improves VSR's performance under unbalanced grid condition. A systematic description of the state switching in trilogic PWM signal generation of threephase CSR by using the conversion between bilogic and trilogic switching functions.

作者在如下工作的基础上对PWM整流器的一些关键问题提出了自己的研究思路、观点和方法：根据PWM整流器网侧矢量关系，直观地描述了其四象限运行的基本原理及特征；定量分析了VSR、CSR的PWM换相过程及波形特征；引入等效变压器模型并详细分析了VSR、CSR基于d—q模型的动、静态特性；提出了满足四象限有功、无功运行指标时的VSR交流侧电感设计方法；并提出了依据控制系统跟随性和抗扰性性能指标设计VSR、CSR直流侧储能元件的参数计算方法；在研究了VSR电流控制策略基础上，提出了影响VSR电流控制的几个要素，并进行了定量分析；根据VSR空间电压矢量的定义及分布，提出了基于规则控制的不定频滞环空间矢量PWM电流控制策略，并由此提出了具有双滞环特性的不定频滞环优化SVPWM电流控制策略，有效地改进了滞环PWM电流控制性能。

Based on two kinds of control strategies of VSR under unbalanced grid condition,the introduction of a new VSR control strategy featuring undamped -oscillation that simplifies the controller structure and effectively improves VSR"s performance under unbalanced grid condition.· A systematic description of the state switching in trilogic PWM signal generation of three-phase CSR by using the conversion between bilogic and trilogic switching functions.· Referenced to the CSR"s trilogic PWM signal generation, an approach to achieve low-stress natural commutation of switching devices by reshuffling the vector composition sequence, resulting reduced switching loss.

在研究了两类电网不平衡时的VSR控制策略基础上，提出了一种新型的基于无阻尼振荡控制器的VSR不平衡控制策略，在简化控制结构的同时，有效地改善了电网不平衡时的VSR控制性能；·通过二、三值逻辑开关函数间的转换，系统地描述了三相CSR三值逻辑PWM信号发生中的状态切换；·结合三相CSR三值逻辑PWM信号发生规律，提出了通过调整矢量合成顺序而使功率管获得自然换相的低电压应力SVPWM控制，从而有效地降低了功率管的开关损耗。

This algorithm firstly simplifies the DEM data by using Morton coding and stores the simplified data with an unfull quadtree.

该算法首先利用不完全四叉树存储Morton码简化后的高程数据，然后根据视点位置和网格空间对象误差的关系建立基于不完全四叉树的LOD模型。

The PWM chip SG3525 with stable performance is used to adjust regulators and MCU 51 is adopted to set the output voltage. The double-push-pull merle based on MOS structures is choused for power amplifier, which simplifies the driving circuit, improves power supply efficiency.

采用性能稳定常用的PWM芯片SG3525进行反馈调整稳压，并通过51单片机设定输出电压，功放电路采用MOS管搭建的双端推挽方式，简化了驱动电路，提高了电源效率。

The combination of a decanting basin and ring filters simplifies the civil engineering design and water treatment process for steel plants.

这种沉淀池和环形过滤器的结合简化了土建设计和水处理工艺。

This method not only breaks the classic method, disengages checklist operation, simplifies the abnormal value process, but also practices real-time self-controlling during the measurement.

这种利用灰色区间控制动态测量异常值的方法，不但从理论上突破传统的经典处理方法，脱离了查表运算，简化了对异常值处理过程，而且计算机在测量过程中，进行实时自动处理，无须人为干预。

The writer simplifies and induces thin-bedding medium in the East of China to several seismogeologic models: wedge model; thin-bedding group in which two mediums have equal thickness, thin-bedding group in which two mediums have not equal thickness and formations whose thickness orderly gradates from top to bottom.

本文通过对某油田的若干口钻井的测井曲线和岩性资料进行分析研究，认为我国东部油区的薄互层地层的地质特征为：①大多数地层为低于目前地震勘探分辨率的薄层或超薄层；②地层在横向上相变剧烈；③地层结构具有多种类型。

In order to search value knowledge fast and conveniently from super large-scale data set, the paper provides a system called Knowledge Grid based on WSRF which simplifies and homogenizes the service-to-service interaction and the complexity is shielded effectively. Finally it describes the process of rapidly discovering distributed knowledge in Knowledge Grid.

为了从网格超大规模数据集中快速方便地查找到有价值的知识，提出了一种基于WSRF标准的知识网格环境，使得各种K-Grid服务更加简洁、均质化，屏蔽了资源自身的异构性和复杂性，最后描述了客户端在这种知识网格环境下快速发现分布式知识的过程。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失