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This paper introduces the software structure and real time process principle of real time NC system, according to the milling process character of NC system and the geometrical modeling method of computer simulation, presents a technique of subdividing roughcasts and data structures which applies to the computer simulation of the NC milling process; and in order to quicken the operating rate and enhance the reality of computer simulation, puts forward a logic algorithm of the 3D milling process of real time NC system which can display the effects of the computer simulation of 3D milling process of real time NC system dynamicly and efficiently in PC, such as the movement of tools, the elimination of materials, the shape changing of roughcasts.

刘景能，蒙艳玫（广西大学，530004）摘要：本文介绍了实时数控系统软件结构与实时工作原理，根据数控系统铣削加工的特点和计算机仿真几何建模方法，给出了适用于数控铣削加工仿真的毛坯离散细分方法和数据结构；为了加快处理速度和增强仿真效果真实感，提出了一种实时数控系统三维加工仿真的逻辑设计算法，即在单CPU机器单线程程序中使用普通软件循环和定时器模拟实现多线程，该算法可以在微机上动态显示高质量的铣削加工过程刀具的运动，材料的去除和毛坯形状的变化等数控加工三维仿真效果。

The modern is a kind of all new system according to the technical purchase system of Internet, its complete body now the purchase system opens sex, vivid and safeties, is a very important direction that buys the system development.

现代基于互联网技术的采购系统是一种全新的系统，它完全体现了采购系统的开放性、灵活性和安全性，是采购系统发展的一个很重要的方向。

In MRI system, magnet system is the main part that generates imaging magnetic field. Its performance is an important factor to affect image quality. Therefore, the research on methods for magnet system has important theoretical and applied values. Magnet system is mainly composed of magnet and shimming component.

在磁共振成像设备中磁体系统是一个重要的组成部分，负责产生均匀静磁场，为磁共振成像提供基础物理环境，其性能的优劣是决定磁共振图像质量的重要因素，也是衡量整个成像系统性能的主要参考指标，因此具有重要的研究意义。

This article introduces hardware and software system of automobile sideslips, principle of automobile sideslips and others principal factors. The sideslips system of automobile is constituted by input system, the output system and 80C51 micro controller unit.

本文介绍了一种汽车侧滑测量系统的硬件及软件的设计方法，该系统由输入系统、输出系统和80C51单片机系统构成。

Essentially, it is concerned with the improvement of national structure so in pushing forward the constitutionality, we should avoid the following theoretical misunderstandings: our national structure is unitary; federal system advocates the principle of "double sovereignties"; compared with federal system, unitary system has the more authoritative central; we should stick to the unitary system to improve our national structure.

中央与地方关系的法治化问题在实质上就是国家结构形式的完善问题，在推进中央与地方关系法治化的过程中，应当注意走出国家结构形式的几个理论误区：我国的国家结构形式是单一制；联邦制奉行的是&双重主权&原则；单一制与联邦制相比，中央更具权威；完善国家结构形式，我们必须坚持单一制。

By the research of Long-distance control system, the paper syncretizes leak detection system into SCADA system. The paper takes advantage of pressure signals to detect leak point and position, and optimizes the resource configuration of SCADA system resonalblly.

本文通过对长输油管道控制系统的研究，提出了将泄漏检测系统融合到SCADA系统中，利用SCADA系统的压力信号进行泄漏检测与定位，并对SCADA系统的资源配置进行合理优化。

Pavement management system systematizes pavement management course by system analysis method, considered technique, economy, society and polity etc, it is divided into network level system and project level system generally.

路面管理系统是通过系统分析的方法，综合考虑技术、经济、社会和政治等各方面因素，协调各项路面管理活动，促使路面管理过程系统化，一般分为网级系统和项目级系统两个不同的层次。

ABSTRACT The relay is one of key components widely used in automatic control system, telecontrol and telemetering system, and communication system. Thus, the research on the reliability of relay may improve the reliability of there above system.

继电器是自动控制系统、遥控遥测系统及通信系统中的关键元件之一，研究继电器的可靠性对提高系统可靠性有重要意义。

The topics of overall design, system design, system implementation and system maintenance of tendering and bidding system are discussed.

从总体规划、系统设计、系统实现和管理维护四个方面讨论了招标投标系统的设计问题。

Project activities included a nationwide survey on the driver's safety belt use rate of the passenger car, the test-driving of COROLLA of TOYOYA, which have equipped with the SBR system and the questionnaire form the drivers in the test. Base on the data, we get the effectiveness of the SBR system to the people of different classification, such as age, income and education etc. The results indicated that the most effective and acceptable safety-belt reminder system concept was one that was adaptive, that is, one that changes its signal type and presentation modality depending on belt use behavior over some metric. Ultimately, base on the fatal data of passenger car driver in the traffic accident of our country and the relationship of the safety belt use rate between the dead driver and the rate in our research, we got the number of life that can be saved in the traffic accident when the SBR system was used, and then the economic losing related was calculated.

首先，通过实地拍摄得到了国内乘用车的安全带佩戴率数据；其次，通过对安装了安全带提醒装置的丰田花冠试验车的试驾调查，得到了安全带提醒装置对安全带使用的提高率，然后，利用Visual Basic对试驾问卷数据进行了处理，全面分析了安全带提醒装置对各类人群的不同效果；最后，以我国道路交通事故中轻、微型车辆驾驶员死亡人数为基础，参考交通事故中死亡驾驶员佩戴率与实际调查佩戴率之间的拟合关系以及使用安全带后驾驶员的存活率，得到了安全带提醒装置对减少国内交通事故中死亡人数的效果，然后基于所能挽救生命数量，对安全带提醒装置在降低国内交通事故中的经济损失方面的效果进行了分析。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"