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SSS 2008-03-28

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. One of the problems with large-scale solar power plants is that they require a huge amount of space. To rise above that problem Israeli researchers rece

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Scientific American(三)月

SSS 2011-07-21

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th

发表于:2018-12-24 / 阅读(77) / 评论(0)

Scientific American(七)月

2006年VOA标准英语-Space Station Spreads Its New Solar Wings

By David McAlary Washington 14 September 2006 The International Space Station has spread a new pair of golden wings. They are solar panels that will double the amount of power available to the outpost. Unfurling them took longer than expected becaus

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2006年VOA标准英语（九月）

沉默是金吗？

Rob: Hello Im Rob and this is 6 Minute English. With me today is Finn. Hello Finn. Finn: Hello Rob. Rob: Were talking about noise today - and looking at some of the words and phrases associated with noise and its opposite: peace and quiet. But, as al

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六分钟英语

电信术语(8)

序号中文英文术语解释缩写来源 141 操作与维护 OAM YD/T 1123-2001 142 操作系统 OS YD/T 1123-2001 143 开放系统互联 OSI YD/T 1123-2001 144 始发／终接CAMEL用户签约

发表于:2019-01-08 / 阅读(63) / 评论(0)

电信英语

美国科学60秒 SSS 2015-04-15

Early warning systems can be the difference between life and death in earthquake-prone regions. But they are expensive. The US, Mexico and Japan have such systems. That leaves large swats of central and South America, Asia and the Caribbean unprotect

发表于:2019-01-20 / 阅读(34) / 评论(0)

2015年Scientific American(四)月

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