China is only about halfway through a 15-year plan to build a total of nearly 10,000 miles of high-speed track connecting 24 major cities.

中国计划用15年时间建成总长近16,000公里、连接24个主要城市的高速铁路网，这一计划目前只完成了近一半。

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This paper discusses the planning process and method of urban high-speed track transportation network.

本文探讨了城市快速轨道交通网的规划过程和方法。

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The effect of track regularity on sled-track dynamic interaction is very strong. The track regularity is one of the mainly considered questions on the design of high-speed track.

轨道平顺度对橇轨耦合动态效应影响很大，轨道平顺度是高速滑轨设计重点考虑的问题之一。

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It's located near the Olympics venue for long track speed skating in Richmond, about a 30-minute drive south from downtown Vancouver.

VOA: standard.2010.02.23

Remember, you've got to keep track of the sign of acceleration, so if you're picking up speed towards the ground, a is negative, so it will be g plus a, but a is a negative number.

记住,一定要注意加速度的符号,所以当你加速下降的时候,a 是负的,还是 g 加上 a,但是 a 是负数

耶鲁公开课 - 基础物理课程节选

Two world records were set during the Vancouver Olympics, both in short track speed skating and both by China.

VOA: standard.2010.03.01

Put it this way: the Shinkansen plying the Tokaido route have access to some 180, 000 potential passengers per mile of high-speed track.

ECONOMIST: High-speed trains

The small section of high-speed track will be connected at both ends to existing lines used by Amtrak, the government-owned passenger railway.

ECONOMIST: High-speed trains

The high-speed track suits the Red Bull car and there remain questions about the Brawn car's ability to be competitive in the lower ambient temperatures that are usual at Spa-Francorchamps.

BBC: I must find form, admits Button