单词:isotope tracer studies
单词:isotope tracer studies 相关文章
[00:04.10]inhabit inhabitant [00:06.48]vt.居住于,(动物)栖息于 n.居民,住户 [00:08.86]inherent inherit [00:11.13]a.天生的,固有的,内在的 vt.继承 [00:13.40]initial initiate [00:15.97]a.开头的,最初的;词首的n.词首大写字母
The deeply divisive national health care law is before the nation's highest court on the first of three days of arguments. People on both sides of the debate appear to agree that the justices would rule on the heart of the case the constitutionality
-Penny: So what'd you get the birthday boy? 你们给生日主角准备了什么? -Howard:Well, Raj got him an awesome, limited edition Dark Knight sculpture awesome:棒极了 limited edition:限量版 Knight :骑士 sculpture:雕塑 Raj给
[00:04.52]Judy? Better call the city. We got a blown transformer! 老婆,打给市政府,变电箱烧了 [00:06.92]Power pole's sparking all over the place! 电线杆也到处在喷火花 [00:08.36]Oh, man. Yard's a waste. 院子没救了,全毁了
It is Friday, April 1st -- no foolin' -- and you're watching CNN Student News! Hello, everyone. I'm Carl Azuz. First up today, we're heading to the North African nation of Libya. But a top ranking official from that country is heading out! Libya's fo
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
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? The Apollo moon missions ended almost 40 years ago. But for lunar scientists, they're gifts that keep on giving. Researchers studying rocks brought back by ast
President Obama welcomed Haitian President Rene Preval at the White House today. Preval is in the US thanking Americans for their help after Haitis devastating earthquake in January. Mr. Obama says the quake was one of the most devastating incidents
1. Almost eight years after Yasser Arafat's death, Palestinian officials are preparing for a possible autopsy on his remains. That after his widow said a Swiss lab found elevated levels of a lethal radioactive isotope on the longtime leader's belongi
Scientists Closer to Solving Plain of Jars Mystery A new group of human remains has been uncovered on the Plain of Jars in Laos. They are believed to date back to the Iron Age, some 2,500 years ago. The Plain of Jars is in the central Lao province of
Studies Show Exercise Reduces Dementia Risk Evidence continues to mount that physical exercise reduces a person's risk of dementia. In some of the latest research, scientists measure actual physical activity, rather than rely on people's imperfect me
Trees in real forests might also share information below ground. 在真正的森林中,树木可能还会在地下交流信息。 But this was really controversial, and some people thought I was crazy, 但这个想法其实挺有争议的,一些人
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
You see, like all networks, mycorrhizal networks have nodes and links. 你们看,就像所有的网络一样,真菌的网络中也有节点和链接。 We made this map by examining the short sequences of DNA of every tree and every fungal indivi
Mother trees colonize their kin with bigger mycorrhizal networks. 母树通过更大的菌根网络来覆盖住自己孩子们所在的区域。 They send them more carbon below ground. 在地下,它们给孩子们会送去更多的碳。 They even
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
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
Let us pause for a moment and consider the structure of the atom as we know it now. Every atom is made from three kinds of elementary particles: protons, which have a positive electrical charge; electrons, which have a negative electrical charge; and
Hello, I'm Nil Nunes with the BBC News. The British Prime Minister, David Cameron, is preparing for a day of frantic diplomacy in Brussels, as he tries to win support from the twenty-seven other European leaders to achieve the reforms he wants. The d
生活大爆炸第四季第十集_1 剧情简介: The Big Bang Theory是一部以科学天才为背景的情景喜剧.四位科学天才分别是:可爱善解人意的Leonard,高智商零情商的Sheldon,会六国语言的 Howard Wolowitz,以及患有