单词：internal conversion radioisotope
单词：internal conversion radioisotope 相关文章
Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod
(科普英语)Earth and Sky
诸多线索综合起来为我们描绘出一幅画面：那是火星遥远的过去，那时的火星还有着一层厚厚的大气层，令这颗星球温热暖和，从而使水能够在火星表面流淌。但如今，地表的水消失不见，而
60秒科学
I believe that by 2015. purely electric, zero-emission vehicles. will take 10% of the global car market. 我相信到 2015 年， 純电动、零排放的汽车将拿下10%的全球汽车市场份额。 I believe that by 2015. purely electric, zero-e
商务英语初阶
The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away
Scientific American(十)月
Wind It Up 歌手：Gwen Stefani 专辑：The Sweet Escape Gwen Stefani - Wind It Up High on a hill was a lonely goatherd, lay-od-lay-od-lay-he-hoo Yodell back with the girl and goatherd, lay-od-lay-od-low Wind it up Wind it up, uh, uh, uh, uh Yodell
好听的英文歌曲
The two municipalities and one province have launched a project to build wind, photovoltaic and power storage stations. Zhangjiakou, a city in Hebei province, boasts more than 6,000 hours of effective winds annually and 3,000 hours of sunshine annual
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