单词：rare earth elements
单词：rare earth elements 相关文章
古代西方哲学家认为构成自然界的物体并衍生万物的物质是水、火、地、风四大元素。地球依着黄道运行其实就是四大元素的流转变化，因此将黄道12星座分为四类。 there are two classifications o
轻松英语
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest
Scientific American(九)月
【生词预览】 element 元素 【笑话原文】 TheFourthElement Teacher:Whatarethefourelementsofnature? Student:Fire,air,earth,and...and... Teacher:Andwhat?Justthinkitover,whatdoyouwashyourhandswith? Student:Soap! 【中文译文】 第四元素
英语笑话（MP3+文本）
Wanted to slice out little time,we wish everyone a happy pie day on this March 14th.413 Ok.let's go ahead to get today's headlines. Two primaries two caucuses,110 delegates,that's what was the stake yesterday in the race for the Republican presidenti
CNN2012年(三)月
Economics Report - Limits on Rare Earth Exports Get China in Trade Dispute 经济报道 - 稀土限制使得中国陷入贸易纠纷 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The United States,
2012年VOA慢速英语(三)月
This is the VOA Special English Economics Report. Few people had ever heard of the natural elements known as rare earth metals before a recent dispute between China and Japan. Yet these metals are used in devices like smartphones, flat screens, hybri
2010年VOA慢速英语(十)月
Is there life beyond Earth in our solar system? 在地球以外，太阳系里还有生命吗？ Wow, what a powerful question. 哇，多么掷地有声的问题！ You know, as a scientist -- planetary scientist -- we really didn't take that very se
TED演讲科学篇
To walkhere on Earth, to be alive, it thanks to a long chain of cause and effect writtendeep into the structure of the universe. A primordial process so long, and soancient that on the scale of a human life it seems almost incomprehensible. One of th
探索与发现2013年
At McGill University in Montreal the young New Zealandborn Ernest Rutherford became interested in the new radioactive materials. With a colleague named Frederick Soddy he discovered that immense reserves of energy were bound up in these small amounts
万物简史
7. Glazed Tiles and Imperial Architecture A: I went to the Forbidden City on Sunday. It was a beautiful day with a blue sky and white clouds. The yellow tiles look gorgeous. B: Glazed tiles are unique to Chinese architecture. They were used exclusive
英语畅谈中国文化
Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel
经济学人科技系列
样板戏 model opera 地雷战 The Mine Warfare 霸王别姬 Farewell to My Concubine 群英会 Gathering of Heroes 借东风 East Wind 将相和 General and Premier Make Up 凤阳花鼓 Flower Drum Dance 醒世恒言 Lasting Words to Awaken the Wor
实用英语
BEIJING, March 15 (Xinhua) -- China's restrictions on rare earth exports are justified and are in line with World Trade Organization rules, Shen Danyang, spokesman for the Ministry of Commerce, said Thursday. The policy aims to protect resources and
英语新闻
What is at the center of the universe? 宇宙的中心是什么？ It's an essential question that humans have been wondering about for centuries. 这是个很重要的问题，几百年来，人们一直在探索。 But the journey toward an answer
TED演讲教育篇
I'm Bear Grylls I'll travel to the ends of the earth 我是贝尔格里尔斯 我将前往穷山恶水之地 and search the most extreme challenges and the most dangerous locations 寻找人类终极挑战 At this program,I'll be drawing on the lesso
荒野求生
China is the world's largest producer and exporter of rare-earths. These are elements which are critical to the manufacturing of high-tech products, including smartphones, wind turbines and car batteries, among other things. However, the rare-earth i
2016CRI中国国际广播电台
If the dull substance of my flesh were thought, 假如我这笨重的肉体如轻灵的思想， Injurious distance should not stop my way; 那么山重水复也挡不住我振翅高翔， For then despite of space I would be brought, 我将视天涯海
莎士比亚十四行诗全集
We don't really know for sure because we have nothing else to compare our own existence to, 我们确实不知道，因为我们没有任何别的东西可以用来跟我们自己的存在进行比较。 but it seems evident that if you wish to end u
万物简史