查询词典 contact rail

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。

Carmody said the track is a continuous welded rail, and ''heat can be a factor and cause a slight misshaping or buckling in the rail.

Carmody说，铁轨是一段段焊接起来的，因此&天热可能是一个导致铁轨轻微变形或弯曲的因素&。

One of the most popular rigid rail fixation items, are extensively used to tighten the rail track on to the wooden or concrete tie.

极受畅销的一些铁路配件中的一种，广泛的用于把铁轨固定在木枕木或混凝土枕木上。

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。"