单词：code for heavy isotopes
单词：code for heavy isotopes 相关文章
Unit 12 DIALOGUE Ⅰ Nuclear Technology for Civil Use A: Does unclear technology mean anything to you? I've just been to an exhibition on the application of nuclear technology to civil use. Do you wan
新编大学英语教程
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
Ancient Bones Reveal Ancient Diet, Lifestyle Scientists learned recently that fish was the main source of protein for people in southern Scandinavia many thousands of years ago. They also ate other animals that live in the water. The findings come fr
2018年VOA慢速英语(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
This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound
Scientific American(六)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
介绍: To take a ride, a user scans the QR code on the bike, unlocks the smart lock and starts a timer. 要骑车，用户手机扫描车身二维码，打开智能锁，计时开始。 After enjoying the fresh service of new bike-lending initiative
英语俚语天天说
How old is the Earth? 地球的年龄有多大？ Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样品中正经历着放射衰变的同位素计数， geologists have estimated the Ear
TED演讲教育篇
But there were many technical difficulties to overcome. Holmes also neededor at least would very much have appreciatedsophisticated gadgetry of a sort that could make very fine measurements from tiny samples, and as we have seen it was all he could d
万物简史
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, 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
下面跟大家列出几种简单句和并列句 1. 简单句的五种形式： (1)主语+谓语(不及物动词)； (2)主语+谓语(及物动词)+宾语； (3)主语+谓语+宾语+补语； (4)主语+谓语+间接宾语+直接宾语； (5)主语+系动
大学四六级阅读
So this previous year, I won the Intel International Science and Engineering Fair. 因此上一年，我赢下了国际科学以及工程大会活动的第一名。 I developed a detector that replaces the current detectors that Homeland Security has
TED演讲教育篇
As one commentator has put it, fleeing would mean selecting a slow death over a quick one. 有一位评论家说，逃跑意味着在慢死和快死之中选择慢死。 The death toll would be very little affected by any plausible relocation effort,
万物简史