无系统的

After building the mathematical model of marine impellent system by means of MATLAB,this paper adopted traditional PID algorithm and used the genetic algorithm to regulate the parameters of PID controller for making simulation and analyses on the speed control system of certain ship.

利用MATLAB建立了船舶推进系统的数学模型，采用传统的PID算法，并利用遗传算法整定PID参数，对某船航速控制系统进行了仿真分析。为反映真实情况，文章分别仿真了船舶在无干扰、5%、10%及20%干扰情况下航速及螺旋桨转速等参数的变化，仿真结果显示遗传算法整定PID参数用在船舶航速控制系统上是可行的

In research and development of the system, mainly concluding key technologies of software-hardware environment analysis, no adapter interlink, terminal simulation, communication, sharing resources, binary file transfer algorithm , concurrent process, database-dumping and sharing, and to accomplish the basic a software design of E-classroom by adopting distribution system concept in minicomputer side , to accomplish the main software design of E-classroom by Winsock in microcomputer side , to study teacher software integration , try to realize transparent communication in the highest limit and sharing resources in the fullest extent , at last, weak and counter measure of the system is given, and the overall objective of heterogeneous computer is given to try to provide resemble system development with theory guide.

该系统的研究与设计过程中主要涉及软硬件环境分析、异型机无网卡互连、终端仿真、异型机通信、资源共享、二进制文件传输算法、并发进程、数据库转储与共享等关键技术，利用DSM分布式系统的概念完成了小型机部分电子教室的基础性软件设计，利用Winsock完成了微型机部分电子教室的主要功能模块，利用并发进程的概念研究了教师机软件的集成问题，使异型机用户之间达到最大限度的透明通信及充分的资源共享，给出了异构电子教室的弱点及解决对策，提出了系统的总体目标，力争为类似系统的研制提供理论指导。

The book introduces theory and technique of low speed and high torque gearless drive system.

本书全面系统地介绍了低速大转矩无齿轮传动系统的理论与技术。

Stability and memoryless state feedback stabilization for discrete switched systems with time delay subsystems are studied.

针对一类子系统为离散时滞系统的切换系统，研究了稳定性与无记忆状态反馈镇定问题。

It is applied to the direct torque control system of speedless sensors, which improves the response and the steady state accuracy.

将之应用於无速度感测器直接转矩拉制系统中，提高了系统的响应速度和稳态精度。

In the developed prototype, the conduction cooling and the high temperature superconductive techniques are used.

这样的装置能根据电力系统的需要，利用所储存的电能，进行快速的动态有功和无功功率的调节，主动参与系统的稳定控制，是一种理想的提高电力系统动态性能和解决系统稳定性的手

In this paper, a shunt APF topology with cascade multilevel converter based on Carrier Phase Shifted PWM is presented. The systematic analysis of the harmonic and reactive power detection, AC side and DC side control, system parameter design and so on is done. The simulation study is carried out.imulation shows the APF system is of fast dynamic response and good compensation. Theory analysis and experimental system is feasible..

因此，本文将二者结合起来，提出了基于载波相移PWM技术的级联型多电平变流器并联APF系统的电路拓扑结构，并在谐波及无功检测、交直流控制策略和系统参数设计等方面进行了系统的分析，在此基础上进行了仿真研究。

The whole system has no dangers such as the flammables , explosive , poison , erosion , short circuit and electric shock in the traditional water heating system , the hot water is gained through the heating exchange between the high temperature refrigerant and water , the water

整个系统的运行无传统热水系统中，能存在的易燃、易爆、中毒、腐蚀、短路、触电等危险，热水通过高温冷媒与水进行热交换得到，电与水在物理上分离，是一种完全可靠的热水系统。

Rotary servo motor + ball screw up to 2 ~ 5μm, and the requirements of CNC-servo motors - even without coupling gap - thrust bearing - Cooling System - high-precision rolling guide - Nut Block - table closed-loop system as a whole transmission part to lighter, higher precision grating.

旋转伺服电机+滚珠丝杠最高达到2~5μm，且要求CNC-伺服电机-无隙连轴器-止推轴承-冷却系统-高精度滚动导轨-螺母座-工作台闭环整个系统的传动部分要轻量化，光栅精度要高。

In the whole market development, there are also a lot of places: 1、decoration personnel, decentralization, spare no good management system, not by most decoration of professional training and lack of effective knowledge in the cases of housing decoration, the quality of the crisis, cut corners, crude abuse of engineering quality is low, no guarantee after-sale, etc. 2、in the industry, many designers unspoken rules, and for his own benefit subcontracted, the owner of this link purchase materials, a rake-off extraction. 3、decoration materials, the source of confusion, very small workshop of small companies selling certificates of poor quality material, often without the use of security, and short, etc.

在整个市场的发展中，也存在很多不规范的地方：1、装修人员的业余化，分散化，没有良好的管理系统，打多数装修人员没有受到过良好的专业培训，在缺乏有效的知识的情况下，往往对住房的装修质量带来不小的影响，偷工减料，粗制滥共工程质量低下，售后无保障等等。2、行业中潜规则，不少的设计师和施工者，为了自身的利益，在业主购买材料的这一环节中，提取着回扣。3、装修材料的来源非常混乱，小作坊，无证件的小商家兜售的材料，往往质量差，无保障，使用年限短等等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。