单词：atomic time standard
单词：atomic time standard 相关文章
Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(
自考英语（一）78讲
Hello, I want a cab. OK. What address is it? 1120 East 32nd Street. Right. The cab will be there in a few minutes. Would you mind passing the salt, please? Certainly. What's your job? I'm an accountant. Oh! Do you enjoy it? No. I don't really like it
初级英语听力
When Stephen Hawking was writing A Brief History of Time, his editors told him that he would lose half of his readers for each equation (方程式) he put in the book. Despite this warning, Hawking found it necessary to include one equation. His choic
人教高中英语高二
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
数学英语
Five Minutes to Midnight 滴！答！滴！毁灭倒数计时 by Kevin Lustig The University of Chicago publishes the Bulletin of the Atomic Scientists, a magazine about topics related to nuclear technology. On the cover of every issue of the magazin
常春藤解析英语
The mayor of the Japanese city of Nagasaki has taken time to criticize the Japanese government's refusal to sign a non-proliferation treaty earlier this year. Tomihisa Taue made has blasted the government during the ceremony to mark the atomic bombin
世界各地新闻集锦
1.Airport pick-up 接机 A:Anybody picks you up at the airport? B:My secretary arranged it. I just hope the chauffeur will show up. A：有人去机场接你吗？ B：我的秘书安排了，我只是希望司机能到。 2. Book a hotel 订酒店 A: Who booked the hotel for you? B
天天商务口语
[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon
美国英语听力80篇
There is one name in____ that ____through the English language even today. You may have ____people say, It doesn't take an Einstein to___ that or he is no Einstein. For more than fifty years, Albert Einstein has stood___ as the world____ of brain pow
听听测测
by Mignon Fogarty Many parts of the world are moving from standard time to daylight-saving time (also called summer time) this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. The original
英语语法 Grammar Girl
VOA Learning English presents Americas Presidents. Today we are talking about Harry S. Truman. He became president of the United States in 1945, a few weeks before the end of World War II in Europe. Truman took office after Franklin Roosevelt died su
2017年VOA慢速英语(十)月
Grammar Girl here. Many parts of the world are moving from daylight-saving time (also called summer time) to standard time this week, so I thought it would be a good time to talk about the phrase daylight-saving time and time in general. Most usage g
英语语法 Grammar Girl
Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol
Scientific American(八)月
Economics Report - How Gold Became the Gold Standard for Trade 经济报道 - 黄金是如何成为贸易金本位的？ This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The best example of something
2012年VOA慢速英语(四)月
时差 说起时差大家或许立马会想到： Time difference 但它只能用来描述地理上的时间差异： What's the time difference between New York and Shanghai? 纽约和上海时差多少？ 谈到具体的时差，中文里会说快、
美国文化脱口秀
GWEN IFILL:Finally tonight, the tale of a top-secret town with a top-secret mission and the women who made history there. Ray Suarez has our book conversation. RAY SUAREZ:During the mid-1940s, thousands of young women got offers of good-paying jobs w
PBS访谈娱乐系列
We all know time is a construct, and right now, it's kept by the very precise tick of an international network of around 500 atomic clocks. 我们都知道时间是个复杂的概念。目前，世界上有一个由大约500台原子钟组成的网络，
阅读空间
本期内容： Auticon, previously known as Mindspark, is one of only a handful of companies that cater exclusively for employees who are on the autistic spectrum. It was founded by Gray Benoist who, as the father of two autistic sons, saw few optio
夏说英语新闻晨读
S no option offered 无期权出售 S split or stock divided 拆股或股息 S signed 已签字 s second; shilling 秒；第二；先令 SA semi-annual payment 半年支付 SA South Africa 南非 SAA special arbitrage account 特别套作账户 SAB s
实用英语
Hello, I want a cab. OK. What address is it? 1120 East 32nd Street. Right. The cab will be there in a few minutes. Would you mind passing the salt, please? Certainly. What's your job? I'm an accountant. Oh! Do you enjoy it? No. I don't really like it
初级英语听力新版