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BBC地平线 南极冰上科考站
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BBC地平线 南极冰上科考站(Ice Station Antarctica)
在这片苍茫冰原上散布着四十个科考站 40 research stations, dotted across this vast wilderness,

为整个南极洲气候模型提供数据 provide all the data for the whole of Antarctica's weather patterns.

因为在南极洲上的监测站很少 Because there are so few measurement stations in Antarctica,

每个监测站的每一批数据都很重要 every single measurement from every station counts,

如果我们缺少了任何一个数据的话 and we get a call from the Met Office

-就会接到气象局的电话 -真的吗 - if we start to miss more than one. - Really?

-是的 -那挺好的 - Yes. - Oh, well, that's good because, of course,

因为数据必须具有连续性 you have to have that spread of data,

不然那些模型就没用了 otherwise the models don't work as well.

每个气象气球里都充满氦气 Each weather balloon is filled with helium

能让它上升到大气层 to lift it high into the atmosphere,

上面都携带叫做无线电探空仪的白色盒子 and it carries a little white box called a radiosonde.

这个能测量气压 温度和相对湿度 So, this measures pressure, temperature and relative humidity,

而且里面还有全球定位系统 and it's also got a GPS in it.

关键是它可以传给我们 And the key thing is that it's giving us a profile

大气层不同高度的情况 through the atmosphere.

你打算让它升到多高 And you're getting these things up to what sort of height?

我们的目标是10千米 So, we're interested at the height of about 10km,

但它们会一直升至25到30千米 but they continue on up to about 25-30km.

在它们爆炸前 它们会变很大吧 But they get to a huge size, don't they, before they actually burst?

对 大概双层巴士那么大 Yeah, about the size of a double-decker bus.

只看到现在这个简直难以想象 It's hard to believe when you see this thing here.

我猜要到升空时间了 OK, well, I suppose it's getting towards time to release.

你想要放飞它吗 Would you like to launch it?

当然 谢谢 I'd love to. Thank you.

真是莫大的荣幸 谢谢 Yeah, that'd be... that'd be a real privilege, thank you.

-好了 -你准备好就可以了 - OK. - When you're ready.

  • 资料大小:1329930 K
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  • 名称: 南极冰上科考站
  • 资料语言: 英语/中文
  • 资料评级: ★★★
  • 开 发 商: BBC地平线
  • 资料来源:牛津英语教学
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  • 资料类别:国产软件
  • 资料授权:英语教案课件
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  • 简介:BBC地平线 南极冰上科考站
  • 更新时间: 2017-4-18 13:40:59
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