太阳电池阵速率稳定度

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you have a dog, you know you gotta walk it. But do you know how it walks? Well, if you have no idea which foot Fido puts forward when, youre in good c

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(二)月

VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Shirley Griffith with EXPLORATIONS in VOA Special English. This week, we tell about a system of planets orbiting a star called Fifty-Five Cancri. And we hear about a plan to harvest electricity from cro

发表于:2019-01-11 / 阅读(110) / 评论(0) 分类 VOA慢速英语2007年(十二)月

New design produces flexible panels using only 1-2 percent as much silicon Art Chimes | Washington, DC 19 February 2010 You can use 100 times less silicon. And that's potentially very significant. Harry Atwater Schematic diagram of the light-trapping

发表于:2019-01-13 / 阅读(61) / 评论(0) 分类 VOA标准英语2010年(二月)

Feed-in tariff program relies on funding from electricity users, not taxpayers Tom Banse | Olympia, Washington 23 March 2010 Proposed solar installation and wind turbine at Gas Works Park in Seattle. National and state governments around the world ha

发表于:2019-01-13 / 阅读(45) / 评论(0) 分类 VOA标准英语2010年(三月)

一个句子中难免出现一两个生字。在这种情况下,不必马上查字典,只要根据上下文的关系,就可能猜测生字的意思了。 下面这些例子,值得大家参考: ⒈利用括号内的解释,如: ① The po

发表于:2019-02-05 / 阅读(59) / 评论(0) 分类 英文语法词汇

Hey, we almost there? 嘿,咱们快到了吗? Says that it's right here. Wup, wup, we passed it. Back up, back up. 说是就在这的。等等,我们走过了。退回去,退回去。 There it is. I see it! 就是这个,我看见了! Welc

发表于:2019-02-19 / 阅读(85) / 评论(0) 分类 咱们裸熊
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