铁路

It is suitable for the pipeline of Electrization railway Touch Net, large thermoelectricity station, petroleum, chemistry, metallurgy and so on, helping them to eliminate temperature response strength, letdown vibration and keep balance of strength.

适用于电气化铁路接触、大型热电站、石油、化工、冶金等行业的管线及设备上，起消除热应力，减低振动，保持力矩平衡的作用。

On the basis of the circuit theory,electromechanics and practical state of the electrified railways,we have made up equivalent circuit of threephase traction substations and traction power supply systems and have got external performance curves.

根据电路原理和电机学的基本理论，结合电气化铁路的实际状态，构成三相牵引变电所和牵引供电系统的等值电路，得出外特性曲线。

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

Wow! The history of elevated railroad is deeply rooted in the development of this city.

高架铁路的变迁和这个城市的发展关系密切。

You could never miss the picture of elevated railroad when you visit downtown Chicago.

当你造访芝加哥市中心时，不可能不注意到它的特色之一--高架铁路。

At Coney Island, 30 foot waves destroyed everything inland for 200 yards including the elevated railroad. Dozens of boats and ships were sunk.

飓风掀起的30英尺海浪把康尼岛上200码地方的一切东西包括高架铁路都摧毁了。

An elevated railroad高架铁路Some elevated people favor the new policy.

一些高层人士支持该项新政策。

Elevated railway station ; vibration and noise ; structures

高架铁路车站；振动与噪声；结构

Answer 9: The existing Haerbin-Dalian Railway shall be elevated to 18.58m, it will work normally during construction.

答：现有哈大铁路也将提高到18.58米，建设过程中仍然正常运行。

In all the cities of the United States, 96% of the passenger trips are by auto, 3% by bus and 1% by subway or elevated railway.

在美国所有城市的往返旅客中，96%靠汽车，3%靠公共汽车，1%乘地铁或高架铁路。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。