查询词典 rail

The train is treated as multi-body system, and its dynamic equations are derived using the D\'Alembert principle. The rail structure is modeled as discrete-supported three-layer system considering the degrees of rail, sleeper and ballast.

车辆为多刚体系统，采用D'Alembert原理建立其动力方程；轨道结构采用考虑钢轨、轨枕、道碴自由度的三层点支承模型；采用有限元法建立桥梁动力分析模型。

According to the difference between elevated light rail transit and railway bridge, the author discusses some design parameters of urban light rail and presents a suggestive value for the calculation.

根据轻轨高架桥梁的特点，对轻轨桥梁设计的城市参数合理取值进行了讨论与分析，并提出了建议值。

The Beijing-Tianjin high-speed rail link, the first "zero emission" rail line, will be put to operation Friday.

中国第一条"零排放"高速铁路—京津城际铁路将于8月1日开通运营。

With the rail reconstruction of the Hongshui River Bridge its longitudinalperformance and the reasonable arrangement of rail expansion joint has been studied.

文中结合红水河斜拉桥的线路改造，对其纵向受力特性及钢轨伸缩调节器的合理布置形式进行了研究。

Table extension units and the pressure rail of bed, using V-quiet pressure rail movement smooth and good shock absorption.

工作台拖板与床身水平导轨，采用 V-平静压导轨运动平稳吸震性好。

Research purposes:The purpose is to make the researches on the structural types of rail fastenings for ballastless track and their key technologies, and to propose the technical development thoughts and concrete design of rail fastenings for passenger dedicated railway line in China.

研究目的：研究无碴轨道扣件结构型式和关键技术，提出我国客运专线扣件技术发展思路和具体设计建议。

In this method it is assumed that when the rail is bent downward, it will be subjected to the reactive force of elastic support points, and when bent upward, the rail will sustain the reactive force of the fastenings (i.e.the weight of sleepers and the friction between sleepers and ballast).

其中假定钢轨向下挠曲时所受的是支点反力；向上挠曲时所受的是扣件反力(由于轨枕自重和轨枕与道床的摩擦力)，这两种反力按上下方向以不同的非线性关系依赖于钢轨位移。

All girders shipped by rail were arranged on a flatbed rail car.

由火车装运的所有主梁都安放在平板火车车皮上。

Free on rail - FOR: Applies to goods delivered and loaded to the rail way.

铁路交货价或火车交货价：指发送并装上火车的货物。

In thetest method, the moving electrode is installed on the free rail and the stable electrodeis installed on the fixed rail.

这个"瞬时自然长度之差"是通过电容式位移传感器进行检测的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。