美国科学60秒 SSS 2013-07-16
时间：2018-12-24 作者：英语课 分类：Scientific American(七)月
英语课
This is Scientific America 60-Second Science, I'm Santy Criber. This will just take a minute.
It's boating season, which means it'll soon be time for the annoying ritual, scraping of the barnacles.They lache on tide and don't let go, barnacles can be a major pain, as they grow they built calcium 1 deposits under a bolts paint.Their interference with smooth fluid flow can decrease fuel effiency up to 40%, a major problem for larger vessels 2. Currently, whole paint can be dote with poison, usually based on carbon oxide 3 that let it kill the little critters but the poison also escapes into the water and can kill other marine 4 life. Now researchers might have a better option a paint addititive that kills just the barnacles using their own behavior against them. A toxic 5 based on molecule-created bacteria. The researchers developed a method of embedding 6 that toxic into the paint so that it only gets released when the barnacles penetrates 7 the paint. The finding is published in an university thesis. The scientists determined 8 that toxic was low concentrations, and could be effective for years, which could lower the cost of paying the barnacle bill.
1 calcium
n.钙(化学符号Ca)
- 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。
2 vessels
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
- 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》
3 oxide
n.氧化物
- 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？
4 marine
adj.海的；海生的；航海的；海事的；n.水兵
- 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。
5 toxic
adj.有毒的，因中毒引起的
- The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
- There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
6 embedding
把…嵌入，埋入( embed的现在分词 )； 植入； 埋置； 包埋
- 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。
7 penetrates
v.穿过( penetrate的第三人称单数 )；刺入；了解；渗透
- 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
8 determined
adj.坚定的；有决心的
- 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。