查询词典 rectangular cartesian coordinate system

The system is the main chapter on e-commerce in today's society in the development, and the system introduced by the use of technology and put forward the purpose of this research; the second chapter of the main-line shopping system analysis, simple introduction of the various components of the system modules and their functions; Chapter III, respectively, described in detail how each module and will be managed to achieve in its use, and in this chapter describes in detail database management, is through the application of SQL Server 2000 software to achieve, and also introduced a system maintenance management and system security management.

该系统第一章主要讲解了电子商务在在当今社会上的发展，及其该系统所运用技术的介绍，提出了本课题研究的目的；第二章主要是对网上购物系统的进行了分析，简单的介绍了系统的各个组成模块及其功能；第三章分别详细讲述了每个模块的如何进行管理并且将其运用到实现中去，在本章中详细介绍了数据库管理，是通过应用SQL Server 2000的软件来实现的，还分别介绍了系统维护管理和系统安全管理。

Mainly for power system automation, power electronics, power equipment, online monitoring and condition-based maintenance, smart appliances, such as professional orientation, and products are mainly including the pumping station integrated automation system, data pass business platform, power management systems, substation automation system, power generation plant electric automation system, power system equipment, the main-line monitoring and condition-based maintenance systems, distribution network automation system, such as near 10 species, widely used in electricity, water, petrochemical, metallurgy, railway and other industries, the product has achieved a modular, standardized, seriation, the main technology in the domestic and international advanced level of similar products.

主要面向电力系统自动化、电力电子、电力设备在线监测和状态检修、智能电器等专业方向，产品主要包括泵房综合自动化系统、数据通业务平台、电量管理系统、变电站自动化系统、发电厂厂用电自动化系统、电力系统主设备在线监测和状态检修系统、配网自动化系统等近十个品种，广泛应用于电力、水利、石油化工、冶金、铁路等行业，产品已实现了模块化、标准化、系列化，主要技术处于国内、国际同类产品的先进水平。

The paper is organized as follows: First, we will give a brief introduction and history of the Human-Earth system and present the method to analyze the regional HE system using PRED model. Then, the indicator system is introduced for the PRED model. Third, the present HE system is studied in details. Fourth, the indicator system is analyzed. Finally, the solutions are proposed for the problems in Shannxi HE system.

本文通过五个方面来论述：第一，介绍了人地协调系统的含义、发展历程以及PRED构型；第二，建立了区域PRED的协调评价指标体系以及对区域人地协调系统进行分析的方法；第三，分析了陕西省人地协调系统的现状；第四，对陕西省的PRED指标体系进行分析；第五，针对陕西省人地协调系统存在的问题提出对策。

Then, aerodynamic parameters in different flight conditions are used to imitate the uncertainty of the system, and the digital simulation of closed-loop system designed is performed. The results show that the system can accomplish asymptotic decoupling of roll angle, sideslip angle and head-on angle for aircraft, and the system is provided with the function for restraining uncertainty in the system. This illustrates that the flight control system designed has not only good decoupling characteristic, but also better robustness.

然后用不同飞行条件下的空气动力参数变化来模拟系统的不确定性，并进行闭环系统数字仿真，结果表明，所设计的控制律不仅可实现对飞机滚转角、侧滑角、迎角等的渐近解耦控制，而且对系统不确定性具有较强的抑制作用，说明系统具有较好的解耦性和较强的鲁棒性。

Firstly, on the basis of summarizing related research home and abroad, this paper introduces the Kano model, defines the characteristics of food quality from natural quality, expected quality and charming quality; Based on the study of the concept of system, management system and quality management system, this paper defines the concept of quality management system of food safety; it also studies the supporting relationship of GMP, SSOP and HACCP system, as well as the feasibility of the integration of the ISO 22000 standard and the ISO9001 standard, which lay a theoretical foundation for the establishment of quality management system of food safety.

本文主要研究工作如下： 1、在综述国内外相关研究成果的基础上，引入Kano模型理论，从理所当然质量、期望质量和魅力质量三方面对食品质量的特性进行了界定；在研究体系、管理体系、质量管理体系概念的基础上，对食品安全质量管理体系的概念进行定义；研究了GMP、SSOP与HACCP体系的支撑关系以及ISO22000标准与ISO9001标准整合的可行性，为超市食品安全质量管理体系的构建研究奠定理论基础。

Government transfer payment is an important policy instrument to coordinate regional economy. This paper measures and analyzes the convergence test of income during 1995-2004, and analyzes the relationship between transfer payment after tax-sharing system reform in 1994 and regional economic convergence through econometric analysis. It concludes that income has neither absolute convergence nor conditional convergence in the nationwide. The overall transfer payments did not meet the goal of narrowing income gap, especially in the central and western regions.

转移支付是政府协调区域经济的重要政策手段，本文测算和分析1995年－2004年省区收入的收敛检验，并运用计量方法分析了1994年分税制改革以后转移支付与地区经济收敛的关系，得出的结论是：收入的收敛模式在全国范围内没有绝对收敛，也没有条件收敛，转移支付总体上没有达到缩小地区收入差距的效果，并且突出表现在中部和西部地区。

The stream function equations are derived, based on the fluid equations of motion on a revolving S 1 stream surface in centrifugal pump impeller, for indirect boundary element method. The equations are suitable ideal and incompressible fluid flow with rotation or non rotation in absolute coordinate system.

根据离心泵叶轮S1流面的流体运动方程，推导了间接边界元法所需的流函数方程，它适用于不可压理想流体的绝对流动有旋或无旋流动。

An accurate and simple formula of the absolute angular velocity of the rotating coordinate system Including solar gravitational perturbation is derived.

所提供的相对动力学模型与J2000坐标系下的绝对动力学模型完全等价。

Coordinate with production, account and sales secretary and make requested report for warehouse system

负责与生产部、会计部和销售秘书进行相关的沟通协调，制订仓库系统的需求报告。

Utilizing wave function expansion method, all of the potential functions of scattered waves are transformed into one coordinate system with the aid of Graff's addition theorem.

使用波函数展开法，利用一组圆柱坐标系统和Graff加法转换定理，将散射波势函数的表达式变换到同一个坐标系。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。