美国科学60秒 SSS 2013-07-15
时间：2019-01-20 作者：英语课 分类：Scientific American(七)月
It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch 1 on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium 2 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 vessels 3. Currently, hull 4 paint can be doped with poison usually based on copper 5 oxide 6 that leaches 7 out slowly to kill over little creatures. But the poison also escapes into the water and can kill other marine 8 life. Now researchers might have a better opition: a paint additive 9 that kills just the barnacles, using their own behavior against them. It's a toxin 10 based on a molecule-created bio-bacterium. Researchers developed a method of embedding 11 that toxin into the paint, so that it only gets released when the barnacle penetrates 12 the paint. The info was published in a university thesis. The scientists determined 13 that the toxin works in low concentrations and could be effective for years, which could lower the cost of paying the barnacle bill.
- 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。
- 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。
- 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》
- 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。
- 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。
- 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？
- 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
- 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。
- 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。
- 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。
- 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。
- 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
- 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。