单词：buildup of higher isotopes
单词：buildup of higher isotopes 相关文章
I'm sure that, throughout the hundred-thousand-odd years of our species' existence, and even before, 我十分确信在人类诞生以来的大概10万多年，甚至比这更长的时间里 our ancestors looked up at the night sky, and wondered what
TED演讲国际问题篇
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
By Phuong Tran Dakar 22 October 2007 In Mali, the government continues to build up its troops in the northeast, the scene of recent fighting and hostage-taking. A rebel leader says he will not release hostages until government soldiers pull out. Phuo
2007年VOA常速英语（十月）
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
US officials in Iraq say violence is down since this summer's troop buildup . Now they want to know what role, if any, Iran played in the downturn . Nearly 30,000 more US troops have filed into Iraq since June. Officials say that surge has led to a 5
美联社新闻一分钟2007
1. Gridlock in the US Senate on Saturday as the body debated Iraq strategy. When the votes were counted, they fell short of the tally needed for a non-binding resolution rejecting a troop buildup. The House passed its resolution. 2. A house fire in
美联社新闻一分钟2007
Cathy Majtenyi The U.N. peacekeeping mission in the Democratic Republic of Congo said that the recent buildup of troops by Rwanda along the borders of Rwanda, Burundi and Congo poses a threat to peace
VOA2004（上）--国际时事
Residents on the Pacific island of Guam are bracing for big changes. Four years from now, the U.S. military plans to transfer thousands of Marines from the Japanese island of Okinawa. The move is part of a larger military realignment in the region an
VOA标准英语2010年(一月)
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
A representative from the U.N. Mission in Sudan has dismissed reports that extra troops would be sent to the Abyei region in advance of the tense vote. Responding to recent reports the United Nations planned to deploy an additional 100 troops in the
VOA标准英语2010年(十)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
193 以色列增强在西岸的武装力量 Israel Sends Reinforcements to West Bank Meredith Buel Jerusalem 18 Jul 2001 15:36 UTC Israel is mobilizing extra tanks and troops in the West Bank in respo
VOA2001-国际风云（3）
By Peter Heinlein Addis Ababa 17 December 2007 Tensions rose along the border between Ethiopia and Eritrea during the year in advance of a November 30 settlement deadline set by an international boundary commission. At year's end, the Horn of Africa
VOA常速英语2007年（十二月）
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
WASHINGTON, June 7 (Xinhua) -- The United States is not shifting big number of troops into the Asia Pacific region, but will try and upgrade its engagement with limited means and foster allies' participation, said Joint Chiefs of Staff Chairman Marti
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