单词:ground absorption
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Leaves Inspire Better Solar Panels What do leaves and solar panels have in common? Both absorb sunlight and turn it into energy. But while solar panels typically have smooth surfaces, leaves have tiny wrinkles and folds that allow for maximum light a
To keep an ear to the ground Up to one's ears 大约一百五十年前,美国一些开荒的人逐步地到西部的荒野去开拓。这些拓荒者从当地印第安人那里学到了一个诀窍,
Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.
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
Ethiopian Jews Settle Into Life in Israel Israel is marking the 20th anniversary of a massive airlift of Ethiopian Jews called Operation Solomon. The arrival and integration of tens of thousands of Ethiopians into Israeli society have presented major
今天要学的习惯用语中的关键单词是ground。 Ground这个词最普通的意思是地面。今天要学的第一个习惯用语是:from the ground up。 From the ground up这个习惯用语来自建造房屋。建房的开头第一步是什
我们上次学的几个习惯用语都有ground这个单词,今天再学几个包括ground这个单词的习惯用语。第一个是:ground rule。 Ground在这里的意思是场地,rule是规则。 Ground rule这个习惯用语原来出自棒球
我们今天要学的习惯用语都表示特定的地点。第一个是:stomping ground。Stomping这个词的意思是用脚使劲地踩踏,ground当然是地,那么习惯用语stomping ground是什么意思呢? 从字面看是被踩来踩去
DAVID GREENE, HOST: Ohio's governor, John Kasich, is back on the national stage this week. He's out with a new memoir about his bid for the 2016 Republican presidential nomination. The book is called Two Paths: America Divided Or United. I spoke with
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A share A股;甲类股份 abatement of tax 减税;减扣免税额 ABN AMRO Bank N.V. 荷兰银行 above-the-line expenditure 线上项目支出;经常预算支出 above-the-line receipt 线上项
Around the world, many people start their day with a cup of coffee, a cappuccino, or an espresso. At the same time, there are many people with various thyroid conditions who rely on synthetic thyroid hormone replacement medication like levothyroxine
When I Hit The Ground Artist:Ace Enders And A Million Different People I tried my best to leave The broken parts of me In the hallway where I wait To watch you walk away I wonder if I run If I chase you, would you come? I just know that something's
上一次我们讲了几个在选举中时常会用到的习惯用语。最后说到的一个是full steam ahead。人们说大选年两大政党的全国代表大会举行后,竞选运动就move full steam ahead。 意思是全党上下都鼓足士气
今天要讲的习惯用语由floor或者ceiling组成。Floor是地板,而ceiling解释为 天花板。好,让我们由下而上来学吧。一栋房子的底层常常叫作the ground floor。在生意场上你很可能会听到这样的说法:
今天我们要学的词是gain ground。 To gain ground意思是有进展,也可以指越来越被大家所接受。Mild weather helped firefighters gain ground on a fire in Yosemite National Park, 温和的天气让消防队员征服优胜美地国
今天我们要学的词off the ground。 Off the ground, 是启程,开始的意思。中国中央电视台英语节目在美国首都华盛顿开播。 CCTV America has hired more than 65 people to get its Washington, DC operation off the ground, 中
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