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美国科学60秒 SSS 2013-07-15

时间:2013-08-29 02:52:48

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(单词翻译)

    It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch1 on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium2 deposits under a boat's paint. And their interference with smooth fluid flow can decrease fuel efficiency by up to 40% --- a major problem for large vessels3. Currently, hull4 paint can be doped with poison usually based on copper5 oxide6 that leaches7 out slowly to kill over little creatures. But the poison also escapes into the water and can kill other marine8 life. Now researchers might have a better opition: a paint additive9 that kills just the barnacles, using their own behavior against them. It's a toxin10 based on a molecule-created bio-bacterium. Researchers developed a method of embedding11 that toxin into the paint, so that it only gets released when the barnacle penetrates12 the paint. The info was published in a university thesis. The scientists determined13 that the toxin works in low concentrations and could be effective for years, which could lower the cost of paying the barnacle bill.


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1 latch g2wxS     
n.门闩,窗闩;弹簧锁
参考例句:
  • She laid her hand on the latch of the door.她把手放在门闩上。
  • The repairman installed an iron latch on the door.修理工在门上安了铁门闩。
2 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
3 vessels fc9307c2593b522954eadb3ee6c57480     
n.血管( vessel的名词复数 );船;容器;(具有特殊品质或接受特殊品质的)人
参考例句:
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
4 hull 8c8xO     
n.船身;(果、实等的)外壳;vt.去(谷物等)壳
参考例句:
  • The outer surface of ship's hull is very hard.船体的外表面非常坚硬。
  • The boat's hull has been staved in by the tremendous seas.小船壳让巨浪打穿了。
5 copper HZXyU     
n.铜;铜币;铜器;adj.铜(制)的;(紫)铜色的
参考例句:
  • The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
  • Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。
6 oxide K4dz8     
n.氧化物
参考例句:
  • Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
  • How can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
7 leaches ba6e67646d542ca254c729e49bae451a     
n.(将化学品、矿物质等)过滤( leach的名词复数 );(液体)过滤,滤去
参考例句:
  • People consume it when it leaches from plastic into baby formula, water or food in container. 当它被从塑料中经沥滤而入婴儿配方奶粉、水或罐装食品当中的时候,人们将其摄入。 来自互联网
  • After this article uses is also the microwave pretreatment, leaches the method with the solution. 本文采用的也是微波预处理后用溶液浸取的方法。 来自互联网
8 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
9 additive BJFyM     
adj.附加的;n.添加剂
参考例句:
  • Colour is often an additive in foods.颜料经常是各种食物中的添加物。
  • Strict safety tests are carried out on food additives.对食品添加剂进行了严格的安全检测。
10 toxin hn5wb     
n.毒素,毒质
参考例句:
  • Experts have linked this condition to a build-up of toxins in the body.专家已把这一病症与体内毒素的积累联系起来。
  • Tests showed increased levels of toxin in shellfish.检验表明水生有壳动物的毒素水平提高了。
11 embedding 91dcd46b7c7d960c321ddb6c8b0ce5d1     
把…嵌入,埋入( embed的现在分词 ); 植入; 埋置; 包埋
参考例句:
  • Data embedding in scrambled Digital video complete source code, has been tested. 数据嵌入在炒数字视频完整的源代码,已经过测试。
  • Embedding large portions of C++ code in string literals is very awkward. 将大部分C++代码嵌入到字符串中是非常笨拙的。
12 penetrates 6e705c7f6e3a55a0a85919c8773759e9     
v.穿过( penetrate的第三人称单数 );刺入;了解;渗透
参考例句:
  • This is a telescope that penetrates to the remote parts of the universe. 这是一架能看到宇宙中遥远地方的望远镜。 来自《简明英汉词典》
  • The dust is so fine that it easily penetrates all the buildings. 尘土极细,能极轻易地钻入一切建筑物。 来自辞典例句
13 determined duszmP     
adj.坚定的;有决心的
参考例句:
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。

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