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CNN英语新闻:切尔诺贝利核事故30周年 建巨型拱门隔绝核污染

比目鱼 于2016-07-25发布 l 已有人浏览
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这是现代工程奇迹。据报道称,一个世界上最大的可移动拱门正在修建,其高度足以覆盖自由女神像,宽度足以覆盖美国国会大厦。
    小E英语欢迎您,请点击播放按钮开始播放……

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AZUZ: It's a modern marvel of engineering. Reportedly, the largest movable object constructed on land, a dome tall enough to cover the Statue of Liberty and wide enough to cover the U.S. Capitol building.

But it's not being built to house tourists, sports or businesses. It's for the remains of a reactor at the Chernobyl nuclear power station. It's located in Ukraine. When it was online in the 1980s, it was part of the Soviet Union. A disaster there exactly 30 years ago was the worst in the history of nuclear power.

An experiment gone wrong caused explosions and blew the roof off Chernobyl's number four reactor. Thirty people died immediately, but scientists estimate that thousand of cases of radiation sickness and cancer deaths will have resulted as well.

After the accident, a giant steel and concrete cover was built to seal reactor four and contain some of its radioactive material. But it's deteriorating and radiation is leaking out. So, the $1.7 billion dome called the New Safe Confinement is being built to cover it.

Engineers plan to use rails to slide it over the current structure this November and to finish sealing it off by the end of next year. Workers are constantly monitored for radiation exposure.

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