单词：ammonia refrigeration
单词：ammonia refrigeration 相关文章
人口数量增长速度过快。给我们的生存环境带来哪些影响？ Alice: Hello, I'm Alice Finn: And I'm Finn. Alice: And this is 6 Minute English! This week were talking about population growth and the effects it might have on the world.
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Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F
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Good morning, from the CNN center here in Atlanta. I am Melissa Long. Its a Tuesday, August 4th and heres a look at some of the stories making news at this hour. Iran is finally confirming that it has arrested three American travelers, three America
CNN2009年(八)月
This is the VOA Special English Agriculture Report. University of Delaware scientists say trees can reduce emissions of dust, ammonia and odor from poultry farms Planting trees around poultry farms can improve air and water quality -- and please the
VOA慢速英语2008年（九）月
This is the VOA Special English Agriculture Report. Planting trees around poultry farms can improve air and water quality -- and relations with neighbors. Research has shown that just three rows of trees near poultry houses can reduce the release of
VOA慢速英语2009年（九）月
a very interesting read about the rapid expansion of refrigeration in China: 关于中国制冷业的快速发展，有一个有趣的事实： It is not simply transforming how Chinese people grow, distribute and consume food. It also stands to beco
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KIEV, Aug. 6 (Xinhua) -- The death toll in a chemical plant explosion in eastern Ukraine's Donetsk region has risen to 5 after two of the wounded succumbed to injuries, the Ukrainian State Service for Emergencies said on Tuesday. The blast occurred a
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