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(单词翻译)
You’ve probably seen dogs working security at airports, sniffing1 for drugs, bombs and contraband2 food. Now our best-friend biosensors might have a new task: ferretting out the scent4 of bird flu.
And they may not be alone on the job. Researchers from the U.S. Department of Agriculture and Monell Chemical Senses Center trained mice to identify duck droppings from animals infected with bird flu. The work was presented at the National Meeting of the American Chemical Society in Boston.
The scientists trained six mice to run a maze5 in search of infected feces. Every time they found the right feces, they got a drink of water. The mice learned to choose infected over noninfected duck feces about 90 percent of the time.
The researchers believe the implications could be twofold. First, bird flu apparently6 leaves an odor imprint7 on bird feces, and so dogs—and even mice—could be trained to recognize it. Second, scientists might be able to isolate8 the cocktail9 of compounds that gives off the odor to develop lab instruments or automated10 field detectors11. Until then, we may find four-legged sensors3, large and small, sniffing away to protect us from a bird-borne epidemic12.
Thanks for the minute. For Scientific American's 60-Second Science. I'm Cynthia Graber.
1 sniffing | |
n.探查法v.以鼻吸气,嗅,闻( sniff的现在分词 );抽鼻子(尤指哭泣、患感冒等时出声地用鼻子吸气);抱怨,不以为然地说 | |
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2 contraband | |
n.违禁品,走私品 | |
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3 sensors | |
n.传感器,灵敏元件( sensor的名词复数 ) | |
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4 scent | |
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉 | |
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5 maze | |
n.迷宫,八阵图,混乱,迷惑 | |
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6 apparently | |
adv.显然地;表面上,似乎 | |
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7 imprint | |
n.印痕,痕迹;深刻的印象;vt.压印,牢记 | |
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8 isolate | |
vt.使孤立,隔离 | |
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9 cocktail | |
n.鸡尾酒;餐前开胃小吃;混合物 | |
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10 automated | |
a.自动化的 | |
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11 detectors | |
探测器( detector的名词复数 ) | |
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12 epidemic | |
n.流行病;盛行;adj.流行性的,流传极广的 | |
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