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[科学美国人60秒] SSS 2015-11-03

时间:2015-11-05 05:09:42

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(单词翻译)

 Ten years ago, a bacteria disease began to eat away the Florida citrous crop. It's called Huang Huang Bin1, or citrous greening, and it causes mishap2 in bitter green fruits and eventually dead trees. Since 2005, the infection is estimated to have caused billions of dollars in damage. And the microbe did all that with the unwitting help of a tiny winged insect, the Citrous ?, which spreads the bacteria as it feeds. But now researchers at UFDA and University Of Florida have come up with a pesticide3 freeway to battle the insect by disrupting its ability to find a mate. When male soulmates are looking for love, they beat their wings, sending vibrations4 along a tree's branches. Nearby females pick up that signal and send back one of their own, which tells males to come hither. The researchers eavesdroped on that with a microphone rigged to a electonic microcontroller. And when the controller identified the male's call, it sent out a decoy female response more quickly than real female could respond. And that imposter call lure5 the males to the device where instead of a mate, they find flypaper. The researchers presented their result at a meeting of the acoustic6 society of America in Jackswill, Florida. The technique is not ready for the limelight just yet. For one, though the decoy call does fool the bugs7, they are still adapted to avoiding the flypaper. But the researchers say this sort of signal jaming interference might be able to disrupt the insects' ability to find a mate, cutting overall numbers of the pest. A similar technique has worked in vineyards and if it works on orange , it could help citrous growers get out of the squeeze.


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1 bin yR2yz     
n.箱柜;vt.放入箱内;[计算机] DOS文件名:二进制目标文件
参考例句:
  • He emptied several bags of rice into a bin.他把几袋米倒进大箱里。
  • He threw the empty bottles in the bin.他把空瓶子扔进垃圾箱。
2 mishap AjSyg     
n.不幸的事,不幸;灾祸
参考例句:
  • I'm afraid your son had a slight mishap in the playground.不好了,你儿子在操场上出了点小意外。
  • We reached home without mishap.我们平安地回到了家。
3 pesticide OMlxV     
n.杀虫剂,农药
参考例句:
  • The pesticide was spread over the vegetable plot.菜田里撒上了农药。
  • This pesticide is diluted with water and applied directly to the fields.这种杀虫剂用水稀释后直接施用在田里。
4 vibrations d94a4ca3e6fa6302ae79121ffdf03b40     
n.摆动( vibration的名词复数 );震动;感受;(偏离平衡位置的)一次性往复振动
参考例句:
  • We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
  • I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了,她使我产生良好的感觉。 来自《简明英汉词典》
5 lure l8Gz2     
n.吸引人的东西,诱惑物;vt.引诱,吸引
参考例句:
  • Life in big cities is a lure for many country boys.大城市的生活吸引着许多乡下小伙子。
  • He couldn't resist the lure of money.他不能抵制金钱的诱惑。
6 acoustic KJ7y8     
adj.听觉的,声音的;(乐器)原声的
参考例句:
  • The hall has a fine acoustic.这个大厅的传音效果很好。
  • Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。
7 bugs e3255bae220613022d67e26d2e4fa689     
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误
参考例句:
  • All programs have bugs and need endless refinement. 所有的程序都有漏洞,都需要不断改进。 来自《简明英汉词典》
  • The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》

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