铁路线路

Because of short of power sources in the altiplano, very long feed line of power distribution system have to be used when one of the substations is failed to operate, in order to g.

由于正在建设中的青藏铁路地处高原、电源稀缺，在某些变电所退出运行的情况下，不得已采用超长距离供电以保障对沿线负荷的电力供给，因此，超长距离供电线路的单相接地故障选线问题值得研究。

Christopher Cockerell's craft can establish transport works in large areas with poor communications such as Africa or Australia; it can become a 'flying fruit - bowl', carrying bananas from the plantations to the ports, giant hovercraft liners could span the Atlantic; and the railway of the future may well be the 'hovertrain', riding on its air cushion over a single rail, which it never touches, at speeds up to

Christopher Cockerell的气垫船可以在广阔而交通困难的广大区域完成运输工作。例如非洲和澳洲。它成为"飞行的水果碗"。将香蕉从种植园带到港口。巨大的气垫船线路可以横垮大西洋。而未来的铁路可能会是"气垫火车"。通过铁轨上的空气垫行驶而没有任何接触。

Striking train drivers reduced commuter traffic around Paris, although international train routes did not appear to be affected.

在铁路系统，爸工工人减少了巴黎周围的车次，但是国际线路似乎没有受到影响。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

Other recent initiatives have revived part of the region's railway network – one of the first was the route from Durban, across Zimbabwe and into Zambia at Victoria Falls. It ends at the major mining town of Ndola.

最近的其他努力也已经使此地区的铁路系统有了复苏的迹象，当中首推的是自德班经由津巴布韦，并于维多利亚瀑布处进入赞比亚，终点在恩多拉的一条线路。

The author studies specially on the situation and plan of national railway in Wuhan metropolitan area , develops intercity railway and suburb railway by integrating and using national railway . The character of the network will be rapid , public , netty and saving energy , which promoting the sustainable development for transportation .

着重研究以武汉为中心，一定区域内的，国家铁路现状条件及发展规划，提出通过整合，开发和利用国铁系统，开辟城际，市郊轨道交通线路，协调与城区轨道交通的换乘关系，从而形成武汉多层次轨道交通网络，实现城市区域轨道交通的快速化，公交化，网络化和节能化，促进交通的可持续发展。

Every day seems to bring a new metro line or high-speed rail link – even a whole new airport terminal.

似乎每天都有新的地铁线路或高速铁路建成，甚至还有一个全新的机场候机楼。

Despite the subterfuge of the private lines, the majority of North Korean railway activity is pretty mundane.

尽管以私人线路为借口，大多数朝鲜的铁路活动相当的现实。

Locating the fault accurately and timely can not only contribute to restore the fault traction line and relieve the intension of surfaceman, but also be propitious to improve the reliability and safety of the railway.

牵引网的精确故障定位，有助于及时修复故障线路，减轻维护人员体力劳动，对铁路安全经济运营具有十分重要的意义。

This 3-billion-dollar rail system will tie in a 47-mile commuter line with existing networks.

这个价值 30 亿美元的铁路系统将用 47 英里长的客运线路连接现有的铁路网。

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。