欧盟科学家正建立“小行星防护盾”-凯发k8官网

欧盟科学家正建立“小行星防护盾”
文章来源:未知 文章作者:enread 发布时间:2012-02-04 05:37 字体: [ ] 
(单词翻译:双击或拖选)

scientists are trying to find a way to protect earth from the giant rocks which travel around the 1 way.

科学家正试图找到能保护地球免遭银河系巨石撞击的方法。

run out of berlin with funds from the eu, the neoshield project, which will look for a way to protect earth from the space rocks, is expected to take three years to complete.

some of the ideas being tossed(投掷) around at the moment include repelling(击退) 4 with 5 or explosives or using gravity to change its course.

the project though is a little late as a 6 of rock 400 times the city of london is set to hurtle(猛冲) closer than a rock of its size has in a very long time.

the 3 labelled '(433) eros' measures 19 by 8 by 8 miles and is set to pass by next week.

despite its massive size, the cosmic rock shouldn't be too cause too much of a threat as it is on a circular(循环的,圆形的) path far outside the moon's orbit.

nevertheless, with nasa estimating that there are almost one thousand asteroids over one kilometre in length and 19,500 over 100-metres, scientists at the institute of planetary research are trying to find a way to protect earth.

with an investment of some €4 million by the european commission and an extra €1.8 million coming from scientific institutions and partners, the german 7 center aims to have a plan for a test mission drafted within three years.

after that, if they can find the extra cash, the mission may be launched by 2020. the scientists will be looking at a host of ideas, many of which have already been proposed.

'of course, a lot of things have already been proposed,' alan harris, the study's leader, told spiegel online. 'but, so far, most of them have come from a single institution, perhaps even from a single person. so it has been hard to pursue them.’

investigating each idea 'will take place on paper and in lab experiments, since we don't have the money to do more than that,' said wolfram lork, who works with a subsidiary(子公司) on the project.

one other, coarser idea would be 'blast deflection(偏向,挠曲) ' which would involve 8 the asteroid with directed explosive charges. harris says this would be the 'final, desperate approach.'



点击收听单词发音收听单词发音  

1 jd0xg     
adj.牛奶的,多奶的;乳白色的
参考例句:
  • alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
  • i like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。
2 404f2b412d0ea801afe58063d78dd5c6     
v.击退( repel的现在分词 );使厌恶;排斥;推开
参考例句:
  • he saw himself standing up and repelling a charge. 他仿佛看见自己挺身而起,打退了敌人的进攻。 来自辞典例句
  • promote the healthy entertainment styles. repelling the superstition, gambling, drugs and obscenity. 提倡健康娱乐。抵制封建迷信活动,拒绝黄、赌、毒。 来自互联网
3 uo1yd     
n.小行星;海盘车(动物)
参考例句:
  • astronomers have yet to witness an asteroid impact with another planet.天文学家还没有目击过小行星撞击其它行星。
  • it's very unlikely that an asteroid will crash into earth but the danger exists.小行星撞地球的可能性很小,但这样的危险还是存在的。
4 d02ebba086eb60b6155b94e12649ff84     
n.小行星( asteroid的名词复数 );海盘车,海星
参考例句:
  • asteroids,also known as "minor planets",are numerous in the outer space. 小行星,亦称为“小型行星”,在外太空中不计其数。
  • most stars probably have their quota of planets, meteorids, comets, and asteroids. 多数恒星也许还拥有若干行星、流星、彗星和小行星。
5 4aa229cb02c56b1e854fb2e940e731c5     
n.抛射体( projectile的名词复数 );(炮弹、子弹等)射弹,(火箭等)自动推进的武器
参考例句:
  • these differences are connected with the strong absorption of the composite projectiles. 这些差别与复杂的入射粒子的强烈吸收有关。 来自辞典例句
  • projectiles became more important because cannons could now fire balls over hundreds or yards. 抛射体变得更加重要,因为人们已能用大炮把炮弹射到几百码的距离之外。 来自辞典例句
6 kqwzz     
n.厚片,大块,相当大的部分(数量)
参考例句:
  • they had to be careful of floating chunks of ice.他们必须当心大块浮冰。
  • the company owns a chunk of farmland near gatwick airport.该公司拥有盖特威克机场周边的大片农田。
7 ck2yf     
adj.航空的,宇宙航行的
参考例句:
  • the world's entire aerospace industry is feeling the chill winds of recession.全世界的航空航天工业都感受到了经济衰退的寒意。
  • edward murphy was an aerospace engineer for the us army.爱德华·墨菲是一名美军的航宇工程师。
8 d3b8e940ecf45ddee34d3cb02230b91e     
v.阻止,制止( deter的现在分词 )
参考例句:
  • however, investors say are a number of issues deterring business. 然而,投资者表示,有很多问题让他们却步。 来自互联网
  • it's an effective way of deterring potential does online, the logic goes. 逻辑上这是抑制潜在线上威胁的有效方法。 来自互联网
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