单词：tubes for precipitation
单词：tubes for precipitation 相关文章
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Asbestos increases the risk for certain cancers. The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation,
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85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04
科技之光
As you know, much of the nation including the south is still in the grips of an arctic blast. Here is what we know at the time. Frigid temperatures blamed for at least seven deaths across the nation. But, today, snow is a real concern in several sout
CNN2010年(一)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
Scientific American(四)月
LANZHOU, March 26 (Xinhua) -- About 4.35 million people in northwest China's Gansu Province have been affected by a weeklong drought, provincial authorities said Tuesday. A lack of precipitation and increasingly dusty weather conditions have affected
英语新闻
BEIJING, May 31 (Xinhua) -- Precipitation has helped ease a lingering drought in Yunnan and Sichuan provinces and conditions will further improve as rainy season arrives, the drought relief authority said on Thursday. Recent rainfall has alleviated 2
英语新闻