查询词典 iron rail

To ensure realization of development planning of urban rail traffic in Tianjin and successful implementation of metro construction projects, establish a public communications network backboned by rail traffic, provide citizens with convenient, fast, cost-effective and secure communications service, it is necessary and urgent to study countermeasures for metro financing in Tianjin for the time being.

为保证天津市城市轨道交通发展规划的实现和地铁建设项目的顺利实施，构筑以轨道交通为骨干的公共交通体系，为市民提供方便、快捷、经济、安全的交通服务，在现阶段，对天津地铁融资对策进行研究是必要的和紧迫的。

The rail joint baris important section that is connectingthe rail joint and its quality will influence the security of railway transportation directly.

铁道接头夹板是连接钢轨接头的重要部件，其质量好坏将直接影响到铁路运输的安全。

In order to control the insufficient transition displacement of the long rail components to ensure the high regularity of turnout and its locking reliability, a transition design method for long rail components and double limb elastically bendable turnout frog structure was established using the finite element method, a new roller sliding platform was developed, and the transition traction point layout and stroke design were optimized.

为控制长大轨件转换不足位移，确保道岔的高平顺性和锁闭可靠性，运用有限单元法进行长大轨件及双肢弹性可弯心轨结构的转换设计，研制出新型辊轮滑床台，并优化了转换牵引点布置及其动程设计。

In 2005 and 2006, the company received successive orders from Dubai Municipality for Phase I and Phase II construction of a fully automated, driverless rail transit system: Dubai Urban Rail Transit, or Dubai Metro, to span a total length of approximately 70 kilometers.

在2005年和2006年，该公司收到连续迪拜市政府为一期，二期建设一个完全自动化的订单，无人驾驶的轨道交通系统：迪拜城市轨道交通，或迪拜地铁，跨越总长度约70公里。

Long rails in jointless track are usually made on welded rail site or in railway welded rail factory.

无缝线路长钢轨通常由铁路焊轨厂或现场焊轨基地焊接。

Based on the analysis of existing rail profiling techniques, this thesis proposes the overall structure and implementation method for the high-speed kinematical detection system of rail profile.

本论文在分析国内外钢轨断面检测技术的基础上，提出了钢轨断面高精度动态检测系统的整体结构和实现方法。

Guaqui to Bolivia in La Paz between rail, Puno to the Pacific coast between the rail, sea Bolivia is an important pathway.

瓜基到玻利维亚首都拉巴斯之间有铁路，普诺到太平洋沿岸之间也有铁路，是玻利维亚出海的重要通路。

However, according to the constructing and operating actuality, most urban rail transits are still allowanced by the government with a low profit except Hong Kong.As quasi city public goods, the urban rail transit has great external benefit.

但是，从各城市轨道交通的建设经营现状看，大多数轨道交通处于政府补贴状态，赢利水平低，目前只有香港等少数几家运营盈利。

Wheel/rail noise of the high-speed slab track on concrete bridge and that of the urban elevated supporting block track are predicted respectively. Noise of the slab track, compared with that of the ballasted track, is more severe. The noise of the slab track is about 6.2dBA higher than that of the ballasted track for the receiver nearby the rail, and about 3.5dBA higher than that of ballast track for the receiver

对降低高速铁路桥上板式无碴轨道及城市轨道交通桥上支承块式无碴轨道轮轨噪声的技术措施进行了研究，包括：(1)分别就板式轨道和支承块式轨道结构参数的低噪声设计原则进行了研究；(2)对几种典型的新型轨道用吸声材料的降噪效果进行了分析，结果表明降噪效果显著；(3)就声屏障高度、位置、形状以及声屏障内侧敷设吸声材料对降噪效果的影响进行了分析，结果表明：声屏障越高、越接近轨道，降噪效果越好；声屏障内侧敷设吸声材料，可降低钢轨近旁噪声2.0～3.0dBA，可降低近地面噪声约1.5～2.0dBA

This paper analyzes the cause of small concaves around the welding seam in the long rail of Guangzhou Metro Line 2, and presents preventive measures, such as increasing the under layer of the rail, limiting the weld seam, lowering the welding temperature etc.

摘要结合广州地铁2号线接触焊焊接长钢轨的实践，分析了产生焊头表面小凹痕的原因，提出改变垫高钢轨的方式、缩小正火範围、降低正火温度、限制接头错牙量等预防措施。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。