铁路系统

Firstly, a simple introduction of the theory of the management information system and its development is given in this paper. The railway managing departments are tending to use more and more management information system to prove the working efficiency in our country. And the QingZang railway lies on the altiplano.

本文首先简要介绍了管理信息系统的概念和发展历史，结合铁路信息化的发展趋势，和青藏铁路地处高原、环境恶劣的特殊情况，阐述了对青藏铁路配电实现信息化管理，开发配电管理信息系统的必要性。

With the continual development of centralized traffic control system in China, the safety of system is becoming more crucial.

随着我国铁路调度集中系统的不断建设，系统的安全性问题日益突出，对于系统安全问题的研究，不仅关系到铁路的安全运营，更关系到铁路行业的安全形象。

The hydraulic loading system is developed and used to study the frost heaving characteristics of the subgrade soils under dynamic loading in closed system and open system . On the base of these work, the conclusions are as follows:1. Because of the the fine-grained fill, the frost deformations of Beijing-Baotou railway subgrade and Baotou-Lanzhou railway subgrade are holistically irregular, and great discrepancies exist among the frost heavings of subgrade at different sections.

本文根据冻害较严重的京包铁路、包兰铁路的气候、地质条件的调查和路基冻胀变形监测，结合路基土的性质对京包铁路、包兰铁路的冻害给出了评价；为了模拟振动荷载作用下土的冻胀，研制了液压动力加载系统；在室内采用实验方法对列车动荷载作用下包兰线路基粉质土在开敞、封闭系统下的冻胀特性进行模拟。

According to the characteristics of the fire control water supply system of railway goods yard , the several ways used for the system are determined under general circumstances with the examples, the best way for the system is the temporary high pressure fire control water syetem.

根据铁路货场消防给水特点，确定一般情况下所采用的铁路货场消防给水系统的几种方式，并举例论证铁路货场消防给水系统最好采用临时高压消防给水系

Firstly, the paper introduces the achievements and development plan of railroading project construction in our country, elaborating the possibility and necessity of methods of whole railroading project schedule dynamic control by using computer-aided management system, and illustrated the study level of the system outside and inside our country.

铁路工程全线施工进度控制系统的研究就是为提高我国目前铁路工程建设管理水平提出来的。首先，本文介绍了我国铁路工程建设的成就和发展规划，提出了采用计算机系统辅助铁路工程全线施工进度动态控制管理的必要性和可行性，分析了国内外该项研究的现状。

Quality Assurance Center, the Great Wall of China opened up the field of survey and design quality system (ISO9000) certification in the country has created the first 21, except for China Tianchen company issued the first national design industry certification, but also for the country's largest Daqing Petroleum Administration Bureau of enterprises (28 million) of the overall authentication certificates for the micro-car factory in Tianjin issued the first National Certification automotive industry for the central city of Harbin presented the first national design activities have a commercial certificate service system, for China's Guizhou Maotai liquor industry plant awarded the first National Certification for Tanggu saltworks awarded the first National Certificate salt industry for China Railway Materials Tianjin issued the first material system, the National Certification for Tianjin Service Center for Scholarly Exchange awarded the first Certificate of intermediary organizations, in order to Qingdao Branch Qingdao railway station railway industry presented the first certificate for the China Telecom Group Tianjin Telecom awarded the first Certificate telecommunications industry and so on.

长城质量保证中心开辟了我国勘测设计领域的质量体系(ISO9000)认证工作，在全国创造了二十一项第一，除为中国天辰公司颁发了全国第一张设计行业认证证书外还为全国最大的企业大庆石油管理局(28万人)整体认证颁发证书，为天津微型汽车厂颁发全国第一张汽车行业认证证书，为哈尔滨中央商城颁发全国第一张有设计活动的商业服务系统认证证书，为中国贵州茅台酒厂颁发全国酒类行业第一张认证证书，为塘沽盐场颁发全国第一张制盐行业的认证证书，为中国铁路物资天津公司颁发全国第一张物资系统认证证书，为天津市留学服务中心颁发第一张中介机构的认证证书，为青岛铁路分局青岛站颁发铁路行业第一张认证证书，为中国电信集团天津电信公司颁发第一张电信行业认证证书等等。

Over the past few years, through our efforts, the Center created in the country the first 21, except for China Tianchen company issued the first national design industry certification, but also for the country's largest enterprises Daqing Petroleum Administration Bureau (28 million people ) overall authentication certificates for the micro-car factory in Tianjin issued the first national automobile industry certification for Harbin Central Mall has awarded the country's first commercial design activities Certification Services System for China's Guizhou Maotai liquor industry plant awarded the National section a Certificate for Tanggu saltworks awarded the first Certificate of homemade salt, Tianjin of China Railway Materials Company issued the first material system, the National Certification for Tianjin CSCSE awarded the first national certification agency certificate, for Qingdao Branch Qingdao railway station railway industry presented the first certificate for the China Telecom Group Tianjin Telecom awarded the first Certificate telecommunications industry and so on.

几年来，通过我们的努力，本中心在全国创造了二十一项第一，除为中国天辰公司颁发了全国第一张设计行业认证证书外还为全国最大企业大庆石油管理局（28万人）整体认证颁发证书，为天津微型汽车厂颁发全国第一张汽车行业认证证书，为哈尔滨中央商城颁发全国第一家有设计活动的商业服务系统认证证书，为中国贵州茅台酒厂颁发全国酒类行业第一张认证证书，为塘沽盐场颁发全国第一家制盐业的认证证书，为中国铁路物资天津公司颁发全国第一张物资系统认证证书，为天津市留学服务中心颁发全国第一张中介机构的认证证书，为青岛铁路分局青岛站颁发铁路行业第一张认证证书，为中国电信集团天津电信公司颁发第一张电信行业认证证书等等。

The magnetic field created in this wire-and-battery experiment is the simple idea behind a maglev train rail system.

以这种铜线加电池形成的电磁场是磁悬浮列车铁路系统的初步设想。

Based on the field investigation in Aug 2001 and Aug 2002, digital China Vegetation Map in 2001 and Qinghai-Xizang Plateau Vegetation Regionalization Map in 1996, vegetation characteristic along two sides of Qinghai-Xizang highway and railway is studied in this article Meanwhile, the impacts of Qinghai-Xizang highway and railway constructions on the ecosystems are analyzed using ARCVIEW、ARC/INFO and PATCH ANALYSIS It was found that:(1) Qinghai-Xizang highway and railway span 9 altitudes,12 longitudes and 6 natural regions (East Qinghai and Qilian mountain steppe region, Chaidamu mountain desert region, South Qinghai alpine meadow steppe region, Qiangtang alpine steppe region, Guoluonaqu alpine scrub meadow region and South Xizang mountain shrub steppe region);(2) the constructions of Qinghai-Xizang highway and railway destroyed natural vegetation and landscape, especially in 50m-wide buffer regions along both sides of the roads, it was estimated that the Primary Productivity deceased by about 30504.62t/a and the gross biomass deceased by 432919.25～

：根据2001-08和2002-08月野外调查数据及2001年1∶100万中国植被图、1996年1∶400万青藏高原植被区划图和2000年青藏铁路沿线自然保护区分布及功能区界调整图，以青藏公路铁路沿线植被生态系统为研究对象，运用ARCVIEW和ARC/INFO软件研究青藏公路铁路建设对沿线生态系统结构的影响，结论如下：①青藏公路铁路南北跨越9个纬度，东西跨越12个经度，共穿越青东祁连山地草原地带、柴达木山地荒漠地带、青南高寒草甸草原地带、羌塘高寒草原地带、果洛那曲高寒灌丛草甸地带和藏南山地灌丛草原地带6个自然区，对植被类型的统计结果显示了地带性。②青藏公路铁路的建设对生态系统产生直接的切割，使景观更加破碎。

Nowadays,its main products include radiation cross-link high-temperature extra-thin wires and cables used for railway system and other application.

本企业目前主要生产铁路系统用辐射交联耐高温超薄电线电缆和其他用途的耐高温电线电缆。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。