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SSS 2008-02-20

时间:2010-05-13 02:39来源:互联网 提供网友:0922013129   字体: [ ]
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This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute?

The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any organisms that might once lived in that area on Mars would really have the * arts. But why do we know so much about the likelihood of particular environment-support life. Mars scientists * you and me in our propensity1 to eat. Harvard professor of Earth and Planetary Science's Andew Knoll2 spoke3 to reporters Friday at the AAAS meeting. "The food preservation4 industry depends hardly on people knowing the kind of ionic tolerances6 of microorganisms. So this isn't some * saying that the Mars scientists will pull a paper off to shelf. How is the papers out there on the tolerance5 of microorganisms and it's not because most scientists are worried about *; it's because they are worried about *" so one science feeds another.

Thanks for the minute for Scientific American's 60 Second Science from the AAAS meeting in Boston. I'm Steve Mirsky.
 


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1 propensity mtIyk     
n.倾向;习性
参考例句:
  • He has a propensity for drinking too much alcohol.他有酗酒的倾向。
  • She hasn't reckoned on his propensity for violence.她不曾料到他有暴力倾向。
2 knoll X3nyd     
n.小山,小丘
参考例句:
  • Silver had terrible hard work getting up the knoll.对于希尔弗来说,爬上那小山丘真不是件容易事。
  • He crawled up a small knoll and surveyed the prospect.他慢腾腾地登上一个小丘,看了看周围的地形。
3 spoke XryyC     
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
参考例句:
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。
4 preservation glnzYU     
n.保护,维护,保存,保留,保持
参考例句:
  • The police are responsible for the preservation of law and order.警察负责维持法律与秩序。
  • The picture is in an excellent state of preservation.这幅画保存得极为完好。
5 tolerance Lnswz     
n.宽容;容忍,忍受;耐药力;公差
参考例句:
  • Tolerance is one of his strengths.宽容是他的一个优点。
  • Human beings have limited tolerance of noise.人类对噪音的忍耐力有限。
6 tolerances 37550448eef5ee78fe1a641dc0d32757     
n.宽容( tolerance的名词复数 );容忍;忍耐力;偏差
参考例句:
  • Not only must the centers decrease, but the tolerances to produce quality bonds must also decrease. 不仅中心间距减少,而且产生优质连接的容限也必须减少。 来自辞典例句
  • Then analysis the reasons and influencing factors of such tolerances. 最后分析出现误差的原因以及影响因素。 来自互联网
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