查询词典 system

Its core technology is the production of continuous roll-to-roll electroplating line, various hardware plastic electroplating line, PCB electroplating line, as well as fabrication of aqua pura prura production system, tail gas treatment system, waste water treatment system, commutation machine and filtration machine related equipment.

科伟达科技公司核心技术为线路板电镀生产线、连续性卷对卷生产线及各种五金塑料电镀生产线的生产，并从事相关纯水生产系统，废气、废水处理系统，整流机及过滤机等相关配套设备的生产制造。

In this design, primary coverage including for aqueous system, drainage system design and fire prevention system.

在本设计中，主要内容包括给水系统、排水系统设计和消防系统。

The theory and approach are introduced, and the general expression containing arbitrary parameter is obtained for the feedback gain matrix. This method changes the problem of multi-input system to several problems of single-input. The number is the cycle index of system matrix. Compare with some known results, this method put forward that the least number of unknown entries of the feedback gain matrix is the order of the system matrix.

汽配置问题，得到了反馈增益矩阵的一般表达式，此表达式中含有任意参数，此方法将多输入线性系统极点配置问题转化为个数为系统矩阵循环指数的单输入系统的极点配置问题，进而推导出确定一个反馈增益矩阵的最少元素个数即为系统的阶数。

In this part, carrier interferometry technique is combined with MIMO-OFDM architechure, resulting in the so called MIMO-CI/OFDM system. It is shown that the novel system can achieve dramatic performance gains by taking advantage of large frequency diversity inherent in the CI/OFDM technique. Further more, the proposed MIMO-CI/OFDM system has a more stable envelope and, ultimately, an average PAPR far smaller than that of MIMO-OFDM.

将载波干涉技术与多天线OFDM技术相结合实现了一种MIMO-CI／OFDM结构，由于CI／OFDM具有大的频率分集作用，该结构因而获得显著的性能增益；而且由于采用CI技术使得发射信号的包络更加平稳，与原有的MIMO-OFDM系统相比具有较低的PAPR。

The system gets two image of one object with two CCD, thus obtains depth from two CCD"s parallax. After investigating the operation spot and discussing with surgeons we use LED as markers, and get the marker"s 3-D position with a non-contact optics orientation method. After calibrating the CCD, processing the image, the system can figure out marker"s areal coordinates, get marker"s 3-D coordinate in dummy world coordinate system, thereby obtain instruments 3-D position and orientation. After the coordinate transformation and a series of orientation calculation, operation navigation comes true.

运用两个摄像机对同一目标从不同位置成像，进而从视差中恢复距离；通过对手术现场的仔细了解与手术医师的反复商榷，使用LED作为标志点，利用非接触式光学定位方法提取空间点位置信息：通过对摄像机的标定、图像处理及目标点重心的计算，求出空间点在虚拟世界坐标系下的三维坐标，从而确定了手术器械等的空间位姿，通过空间坐标转换及一系列定位计算，完成了手术导航实验系统。

Firstly it describes the development ,basic principle and application and propagation characteristic of mobile channel , then investigates the system structure of DAB transmitter and receiver separately and the key technology of realization of the digital audio broadcast system.And then discusses the system component of FFT －the demodulation module of OFDM .The 409- points FFT module employs a radix-4 decimation-in-frequency algorithm, includes arithmetic element , read and write address element ,twiddle factor element and control element , is realized by FPGA. In the end , the result is verified in the matlab .

首先概述了OFDM的发展、基本原理和应用以及移动信道的传播特性，接着分别研究了数字音频广播接收机和发射机的系统结构，以及数字音频广播系统实现的关键技术，然后详细论述了OFDM解调模块FFT的系统结构，主要研究了4096点FFT采用基－4按频率抽取实现的算法，整个FFT模块包括了运算单元、读写地址单元、旋转因子单元以及控制单元，并且在FPGA中进行了硬件实现，并在matlab环境下对结果进行了验证。

The products includes on-line intelligent monitoring and diagnosis system of six dissolved gases and water contents in transformer oil; transformer partial discharge on-line monitoring system; capacitive electrical apparatus and metal oxide arrestor insulation on-line monitoring system,etc,.

该产品包括变压器油中六种溶解气体及微水含量在线智能监测诊断系统；变压器局部放电在线监测系统、电容性电气设备及金属氧化物避雷器绝缘在线监测系统等十多种系列产品，监测特征量多、功能齐全，智能化程度高，可靠性和灵敏度满足工程运行要求。

At the initial stage of system development and design, make the problems into core components and aspectual ones, and modularize crosscutting concerns into separate aspects, which makes system structure more clearer and makes automatic code generation possible, and also, brings convenience to the system maintenance.

而在系统开发与设计的初始阶段就将问题分解为核心组件和方面组件，并将横切关注点模块化为独立的aspect，可使系统结构更加清晰，为下一个阶段的代码生成、系统维护等工作带来便利和保障。

Based on surveying the development of variable frequency power supply and analyzing its development tendency, and considering the practical features of the assignment, the conversion system is designed as follows: it selects the 3-phase Pulse Width Modulation Engine SA4828 as the PWM control signals generator; it chooses the single-chip-computer PIC16F877 as the microcontroller, which integrated the A/D modulation, which cuts down the complexity of the hardware system and strengthens the dependability of the system.

在论述和分析了变频电源及其控制技术发展的概况和趋势的基础上，结合本课题任务的实际要求，设计了一套中小功率的逆变电源。系统中PWM控制信号采用专用集成芯片SA4828生成，减轻了控制器的工作量也提高了系统的可靠性。控制器选用集成了A/D转换器的单片机，使得系统的硬件复杂性降低，提高了可靠性。

We should establish tax courts in the domain of judicial system,compartmentalize the areas and ranks of precincts according to the economic area and trial grades,try to set up the assizes trial system and judges selecting and managing system.

我国应确立税务法院隶属司法系统的模式，按照经济区域、审级要求合理构建税务法院系统和确定管辖。尝试建立巡回审理的制度。并建立合理的税务法官选任、管理制度。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。