A fast railroad train, traveling 96 kilometers an hour, takes more than 48 hours to cross the country.

一辆快速的火车，旅行96公里每小时，需要超过48个小时横渡国家。

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The control and the testing techniques of railroad train air conditioning become an important research direction.

列车空调系统控制和检测技术成为重要的研究方向。

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Next, the NASA Railroad train will drive the segments over the IndianRiver and onto NASA Kennedy Space Center property.

接下来，NASA铁道列车将会载着这些部分跨越印第安河，由NASA肯尼迪航天中心接管。

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His train is unsafe. Yet he stays on the job after other workers have called a strike against the railroad company.

VOA: special.2010.09.06

Serb officials at first said the train was bound for Thessaloniki, Greece, but Greek railroad officials said that train arrived safely.

CNN: Yugoslav train hit during NATO strike; 10 dead

Send him a telegram when you arrive at the airport and then take any train on the railroad that stops at a little place called New Jerusalem.

NPR: Excerpt: The Sherwood Ring

When the railroad -- it's right next to a railroad, and when the train runs by, the whole building shakes and the teacher has to stop teaching for a while.

WHITEHOUSE: Presidential Press Conference