科学美国人60秒:新型油漆解决藤壶问题
日期:2013-07-17 15:32

(单词翻译:单击)

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It’s boating season. Which means it’ll soon be time for that annoying ritual—the scraping of the barnacles. They latch on tight and don’t let go.
现在是航运季节了=],W%mj1=gc^!1T。这也意味着恼人的藤壶又来了j@bi&9kPUp。它们巴在船上不放b-6E|2;Z+d|1
Barnacles can be a major pain: as they grow they build up calcium deposits under a boat’s paint. And their interference with smooth fluid flow can decrease fuel efficiency by up to 40 percent, a major problem for large vessels.
藤壶危害很大Fwr;bH^W&b。随着它们的生长,它们产生钙质物沉积在船的油漆层oq82)6@lQI-qCT@。它们能减少大约40%的燃料利用效率,这对大船来说是个主要问题mTu,b#WbwuDRvHu~j
Currently, hull paint can be doped with poison, usually based on copper oxide, that leaches out slowly to kill the little critters. But the poison also escapes into the water and can kill other marine life.
目前,船体油漆可以添加有毒物质,通常是铜氧化物,这些有毒物质慢慢渗出,杀死这些藤壶vABxv5NLf9@.z&m6Kr0L。但是有毒物质也混入水中,同时杀死其他海洋生物W&F|gg,UIiz
Now, researchers might have a better option: a paint additive that kills just the barnacles, using their own behavior against them. It’s a toxin based on a molecule created by a bacterium. The researchers developed a method of embedding that toxin into the paint so that it only gets released when the barnacle penetrates the paint. The info was published in a university thesis.
现在,研究人员有更好的选择了,就是一种只杀死藤壶的油漆添加物,利用藤壶自己的行为杀死它们TfLT4;CYtJnfH。这是一种由细菌创造的分子毒素)igW(=#wwSEkfy7]9,+。研究人员发明了一种方法将这种毒素嵌入油漆中,当藤壶附着在油漆上时就会释放毒素YBg6AbSpcC!ovW#L|v。这个信息发表在一篇大学论文上QR1QHw89ld.u~tP3
The scientists determined that the toxin works in low concentrations and could be effective for years. Which could lower the cost of paying the barnacle bill.
科学家确定毒素在低浓度下可以有效使用多年HPOHF)8tU1snB,[GU。这降低了治理藤壶的花费Z=0s]YNUmW
—Cynthia Graber

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重点单词
  • ritualn. 仪式,典礼,宗教仪式,固定程序 adj. 仪式的,
  • efficiencyn. 效率,功率
  • effectiveadj. 有效的,有影响的
  • additiven. 附加物(加法) adj. 加添的
  • toxinn. 毒素,毒质
  • moleculen. 分子
  • optionn. 选择权,可选物,优先购买权 v. 给予选择
  • poisonn. 毒药,败坏道德之事,毒害 vt. 毒害,摧毁,中毒
  • interferencen. 妨碍,干扰 [计算机] 干涉
  • annoyingadj. 恼人的,讨厌的