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CNN英语新闻:瑞士圣哥达基线隧道开通长度成世界第一

比目鱼 于2016-06-07发布 l 已有人浏览
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一条世界上最长,最深的隧道现在已经开通。这条35英里长,穿越瑞士阿尔卑斯山脉底部的隧道就是圣哥达基线隧道。一些地方达到了半英里深,而其中穿越的列车速度高达每小时155英里。
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From Canada, we're moving across the Atlantic to Switzerland, where the longest, deepest tunnel in the world is now open.It's named the Gotthard Base Tunnel. It's 35 miles long and runs underneath the Swiss Alps.In some places, it's one and a half miles deep and the trains that traverse it hit speeds of up to 155 miles per hour.Will it save time? Yes. Officials say trains will be able to get from Zurich, Switzerland, to Milan, Italy, about an hour faster on this route than trains on other routes.Would it help in other ways?Yes. Officials say freight will be moved more quickly, more efficiently and more reliably.What was the cost? The tunnel took seventeen years and 12 billion to build, about 2,600 people worked on it along the way.

Thank you for all of your "Roll Call" submissions this school year.We received more than 100,000 requests.The last three schools we'll mention with Avon Grove Charter School.It's in West Grove, Pennsylvania, the home of the Wolves.Moving west to Charlotte, Michigan, hello to the Orioles.Great to see everyone at Charlotte High School today.And in Big Sky Country, the community of Big Sky, Montana, we totally dig the miners of Ophir Middle School.

There are a number of ways scientists can measure air quality, monitoring stations can keep track of the air in one specific place and detect any changes.Trucks loaded with mobile instruments can be sent to different areas, measuring carbon monoxide and ozone levels.And satellites can track pollutants and how the move over a city.There's another way to measure the quality of the air, though, by flying right through it.

0600 hour, NASA prepares to fly.A beautiful sunrise masks by a lingering haze, one of the reasons this DC-8 jetliner is here in South Korea.This flying laboratory will find out what pollutants are here, who's causing them and how they can be measured more accurately from space.

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