单词：carrier isotopes
单词：carrier isotopes 相关文章
A Chinese-made self-driving container straddle carrier, said to be the first of its kind in the world, is now undergoing testing at a port in Shanghai, reports China Central Television. A container straddle carrier is a freight carrying vehicle that
2018CRI中国国际广播电台
Ever wonder what your French fries were fried in? Like bumbling burglars who leave fingerprints at a crime scene, cooking oils leave their own clues. And by measuring the carbon isotopes in French fries, University of Hawaii researchers found that on
Scientific American(一)月
Newspaper Carrier Day is an important day to celebrate one of societys forgotten workers the newspaper carrier. Every day, thousands of newspaper girls and boys get up early and carry heavy bags of newspapers around the streets. They deliver our news
英语课程学习计划和讲义
JUDY WOODRUFF: President-elect Trump made his first public speech today since the election on a trip to Indiana to tout a deal that he said made good on a campaign promise. Mr. Trump met with Carrier workers on the floor of their Indianapolis plant t
PBS访谈商业系列
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Climate change is the great environmental challenge facing the world today, but maybe we should start calling it Climates Change. Because scientists who've
Scientific American(五)月
Some people of Italian ancestry, like me, might have a surprise in the family treea man of east Asian descent, who was living and working 2,000 years ago in the boondocks near the heel of the Italian boot. The discovery is the first good evidence of
Scientific American(二)月
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola
Scientific American(七)月
AS IT IS 2016-04-26 Chernobyl, Risky Still, Thirty Years Later 切尔诺贝利三十年后风险仍在 Tuesday marks the 30th anniversary of the Chernobyl disaster, the worlds worst nuclear accident. The effects of the disaster are still felt today.
2016年VOA慢速英语(四)月
The first day of the experiment, we got out to our plot 实验的第一天，我们来到了实验地点， and a grizzly bear and her cub chased us off. 突然一头灰熊和她的熊宝宝出现，把我们赶跑了。 And I had no bear spray. But
TED演讲科学篇
Science and technology 科学技术 Going underground 向地底进军 A project to reveal more about all the carbon on Earth 旨在向人们揭示更多地球碳信息的项目 The Deep Carbon Observatory 深碳观测站 A world still full of secrets
经济学人科技系列
Technology Going underground 科技 去地球深处 A project to reveal more about all the carbon on Earth 一个将会揭示更多关于地球上所有碳的秘密的项目 THE carbon cycle is the stuff of school books. 碳的循环在学校教科书中
经济学人科技系列
Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年。《All Good Things》是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想到Enya一类的音乐元素，但歌曲编排都渗入了具备时代感的流行曲节奏。唯一真正保留Sissel原来风格的，或
音乐咖啡厅
BEIJING, March 29 (Xinhua) -- China is conducting scientific testing and training exercises for its aircraft carrier, Defense Ministry spokesman Yang Yujun said Thursday. It takes time for weapons and equipment to be developed from scientific researc
英语新闻
China conducts flight landing on aircraft carrier LIAONING AIRCRAFT CARRIER, Nov. 25 (Xinhua) -- China has successfully conducted flight landing on its first aircraft carrier, the Liaoning, naval sources said. A new J-15 fighter jet was used as part
英语新闻
DALIAN, Sept. 25 (Xinhua) -- China's first aircraft carrier was delivered and commissioned to the People's Liberation Army (PLA) Navy Tuesday after years of refitting and sea trials. Overseen by President Hu Jintao and Premier Wen Jiabao, the carrier
英语新闻
China's first domestically-built aircraft carrier has set out from a port in Liaoning on its maiden voyage to start sea trials. The 50,000-ton vessel, codenamed Type 001A, is the second aircraft carrier launched by China. It follows the carrier Liaon
2018CRI中国国际广播电台
A group of scientists from the Ohio State University are trekking to the top of the Quelccaya Ice in the Peruvian Andes to try to measure the effects of climate change on the world's glaciers. The average distance above sea level on the glacier is ar
英语新闻
听歌学英语:空灵清澈天籁之音SisselCarrier Of A Secret Sissel Kyrkjebo，挪威著名的女歌手，以其空灵清澈的音色踏入歌坛超过10年.是Sissel首张唱流行曲的唱片，十一首歌曲虽然还可发现不少令人联想
听歌学英语
The Indian government will give billions of dollars to rescue its debt-ridden national carrier, Air India. But the government has deferred a decision on allowing foreign airlines to pick up a stake in private Indian airlines, which are also strugglin
英语新闻
WASHINGTON, Aug. 17 (Xinhua) -- Latest research shows that the Moon could be younger than previous estimates. The findings were published online Wednesday in the Nature journal. The prevailing theory of the Moon's origin is that it was created by a g
英语新闻