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VOA双语新闻:澳大利亚利用藻类吸收二氧化碳对

时间:2011-05-13 03:38来源:互联网 提供网友:wp661375   字体: [ ]
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  Australia is preparing to introduce technology that allows algae1 to capture half or more of the greenhouse gases emitted by a power station. The micro-algae thrive on carbon dioxide, producing food for livestock2 as well as biofuels and material for plastics.
澳大利亚正准备采用一种新技术,利用藻类吸收发电厂排放出的一半以上的二氧化碳。藻类靠吸收二氧化碳来生长,而且可以被当作家畜饲料、生物燃料和制造塑料的原材料。
Researchers think that humble3 algae, which are simple, rootless plants that normally provide food for aquatic4 animals, could lead be a revolutionary tool in the battle against climate change.
研究人员认为,这种简单、无根的微型藻类植物通常只是水生动物的食品,但是现在却变成了对抗气候变化的一个革命性工具。
The idea is to pump emissions5 from power stations into photo-bioreactors, which are large tubes filled with algae.
具体方法是将发电站排放出的废气注入到巨大的罐式光合生物反应器中。这种光合生物反应器其实就是一个装满了藻类植物的大罐子。
When carbon dioxide from the power stations is mixed with water, the algae soak up much of it, using it as a nutrient6.
当把从发电厂排放出来的二氧化碳溶入水中时,藻类能把绝大部分二氧化碳当作养料而吸收,从而茁壮生长。
Once the algae are removed from the tubes, scientists say they can be buried in the seabed, where they could store indefinitely the carbon they have ingested.
科学家们说,这些藻类从罐子取出后,可以埋在海底,如此一来,海藻便能把吸收的二氧化碳永远储存起来。
The algae can also be processed and used to create biodiesel fuel and fertilizer, as well as food for farm animals.
藻类经过处理后还能用来制造生物柴油、肥料和饲料。
Kirsten Heimann at Queensland's James Cook University developed the technology.
克斯滕·黑曼(Kristen Heimann)在昆士兰的詹姆斯·库克大学从事这项研究。
"They take up carbon dioxide from the air or if you feed them carbon dioxide they take that and with the aid of sunlight they are converting that into sugars, proteins and oils," explains Heimann.
他说:“藻类能从空气中吸收二氧化碳,你也可以给藻类注入二氧化碳,在光合作用下,藻类能把吸收的二氧化碳转换成糖分、蛋白质和油脂。”
Three of Australia's biggest coal-fired power stations are building algae farms to help them reduce pollution in a country where 80 percent of electricity is generated by burning coal. Burning fuels such as coal and oil pump vast amounts of greenhouse gases into the atmosphere.
澳大利亚三座最大的燃煤发电厂正在兴建海藻农场来减少当地的空气污染。澳大利亚80%的电力来自于燃煤发电。燃烧煤炭和石油这类化石燃料会产生大量的温室气体。
Australia is one of the world's worst per capita emitters of greenhouses gases, which many scientists believe contribute to global warming.
澳大利亚是全世界温室气体人均排放量最高的国家之一,许多科学家认为温室气体是造成全球气温上升的主要原因。
As well as Australia, the pioneering algae technology is also being tested in the United States and Germany.
除了澳大利亚之外,美国和德国也都在测试这种具有开创性的藻类利用新技术。


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1 algae tK6yW     
n.水藻,海藻
参考例句:
  • Most algae live in water.多数藻类生长在水中。
  • Algae grow and spread quickly in the lake.湖中水藻滋蔓。
2 livestock c0Wx1     
n.家畜,牲畜
参考例句:
  • Both men and livestock are flourishing.人畜两旺。
  • The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
3 humble ddjzU     
adj.谦卑的,恭顺的;地位低下的;v.降低,贬低
参考例句:
  • In my humble opinion,he will win the election.依我拙见,他将在选举中获胜。
  • Defeat and failure make people humble.挫折与失败会使人谦卑。
4 aquatic mvXzk     
adj.水生的,水栖的
参考例句:
  • Aquatic sports include swimming and rowing.水上运动包括游泳和划船。
  • We visited an aquatic city in Italy.我们在意大利访问过一个水上城市。
5 emissions 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
6 nutrient 3vpye     
adj.营养的,滋养的;n.营养物,营养品
参考例句:
  • Magnesium is the nutrient element in plant growth.镁是植物生长的营养要素。
  • The roots transmit moisture and nutrient to the trunk and branches.根将水分和养料输送到干和枝。
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