查询词典 block system

Chapter 1 gives a brief introduction to basic contents and methods of system identification and solutions of certain prob— lems met during the process of identificationIn chapter 2, the identification is accomplished by transforming the linear differential equation of a dynamic system into an algebraic form via block pulse functions .

第二章介绍采用正交函数BPF将含有未知参数的系统线性微分方程转化为代数向量方程求解，获取表征系统特性的传递函数或微分方程参数而达到辨识目的。

E. block-pulse functions , a arbitrary piecewise constant functions which are orthogonal and unconcerned are introduced to analyze and synthesize fluid PWM system to solve some related problems of PWM system.

第一章首先通过对流体脉冲调制及相关技术的研究发展现状综述，阐明了寻求高效的分析与设计手段以推动流体脉冲调制系统研究、发展和应用的必要性和重要意义。

During 3D seismic data acquisition in Berri Block of Saudi Arabia,GPS navigation system was used while shooting,and monitoring shot-point drift on the interface of GPS navigation system,to initially control shot point error. Then,the method was applied to control seismic data acquisition quality,to analyze and examine shot-point drift and receiver-point drift.

在沙特Berri工区三维地震数据采集过程中，首先在放炮时采用GPS导航系统，在导航系统监控软件界面上监测炮点偏移情况，初步控制炮点误差；然后利用基于最小偏移距分选方法对地震数据采集质量进行监控，并对炮点和检波点偏移误差进行分析和检查。

This thesis make a study on Vector-contorl WVF system of asynchronous motor. In the course of study, making use of the mathematical model of asynchomous motor in MT axes. Then both open-loop control system and close-loop vector-control system are respectively simulated with simulation block SIMULINK in MATLAB.

本文对异步电动机变频调速系统进行了研究，利用异步电动机在二相同步旋转MT坐标系下的数学模型，使用MATLAB中的仿真工具箱SIMULINK分别对开环控制系统和闭环矢量控制变频调速系统进行了仿真。

Therefore the block of microcomputer system also chiefly originates the hard disk sub system,"resuscitates a hard disk , and too resuscitate one suit of microcomputer system !"

微机系统的故障也主要来自硬盘子系统，&救活一个硬盘，也就救活了一套微机系统！&

The cooling system is made up of the passages inside the engine block and heads, a water pump to circulate the coolant, a thermostat to control the temperature of the coolant, a radiator to cool the coolant, a radiator cap to control the pressure in the system, and some plumbing consisting of interconnecting hoses to transfer the coolant from the engine to radiator and also to the car's heater system where hot coolant is used to warm up the vehicle's interior on a cold day.

制冷系统是在发动结内部中间和顶部有许多段组成的，一个水泵来循环制冷剂，一个自动调温器来控制制冷剂的温度，一个水箱来冷却制冷剂，一个水箱盖来控制系统的压力，许多泵还包括互相连接的水管输送制冷剂在发动机和水箱之间，或是发动机和汽车的加热系统，当冷天气，加热剂来增加汽车的内部温度。

Simulation results also show that on the condition of same system throughput and concatenation of channel code, the proposed FSTBC-CDMA system has lower Bit Error Rate than those low-rate and full-diversity space-time block coded CDMA system.

仿真结果表明在相同系统容量和级联码的情况下，所给系统比相应的满分集空时编码CDMA系统有着低的误比特率。

Combined with technical transformation of 125MN extrusion press extrusion dummy block transportation system, by analyzing the existing problem in the old system, choose a scientific project-to make a frequency-converter speeding-adjusting system of crane based on communication of Profibus-DP.

结合125MN挤压机运垫系统的改造，通过分析老系统存在的问题，制定科学的改造方案－基于Profibus-DP标准的通信变频调速系统，并组织设计、选型和实施，从根本上降低设备故障率，提高系统运行速度和控制精度，并为其他在线设备的电气改造提供可靠的经验。

Moreover, this article offers various improvement programs for smoke evacuation system in subways system. Initially, we offer an idea to minimize the anti-smoke divisions and to rearrange vent positions to resolve the failure of station smoke evacuation mode. In the study of smoke evacuation process at tunnel track area, we find an upward slope will block smoke evacuation. This study also finds that start of fans operation will speed up the accumulation of smoke and endanger people's life during escape. The way to resolve is that we need to add fans at upward slope. This result is different from the report of one dimensional SES simulate analysis. To timely correct the safety evaluation result in SES report and to efficiently improve the failure of smoke evacuation system design are recommended by this article. Therefore, an increase of time for people to escape in fire hazard with less casualty.

本文另於对捷运排烟系统提出各项改善方案中，初步提出车站排烟系统防烟区划缩小构想，并配合风口位置调整策略来解决失效的车站排烟模式；而隧道轨道区排烟系统在研究过程发现爬坡段有阻碍排烟效果，本研究发现风机开启后反而加速烟气滞留并危害人员逃生，解决之道则必需於爬坡段增加风机来排除，此与一维式SES模拟分析报告结果不同，故能藉以及时更正SES报告之安全评估结果，经由所提改善方案，有效改善所发现排烟系统设计之失效，提高人员火灾时逃生的安全时间，降低人员伤亡。

The great hindrances which block the development of our enterprises are the industrial right system, the personnel system and the distribution system.

而现在首先给我们的企业发展带来障碍的是产权制度、人事制度和分配制度与发展的不适应。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。