单词：time-of-flightion mass spectrometer
单词：time-of-flightion mass spectrometer 相关文章
We call this a co-viewing clique, a virtual living room if you will. 我们称之为共视团体，你可以把它当成一个虚拟的客厅 And there are fascinating dynamics at play. It's not one way. 这里头上演着引人注目的戏剧。它不
TED演讲教育篇
Broadcast: Jan 22, 2003 By Marilyn Christiano VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, Explorations. Today we tell about a scientist who
VOA2003（上）-科技导航
For nearly 130 years, the worlds scientists have used a singular small, metal cylinder to define the exact weight of a kilogram. But that is about to change. The cylinder was made in 1889 of platinum and iridium metals. It is called the Grand K. The
2018年VOA慢速英语(十一)月
This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? In a laboratory vault outside Paris is a small cylinder of platinumiridium alloy that serves as the standard for all mass measurements worldwide. By an 1889 international
Scientific American(一)月
When the Pachyrhinosaurus bodies came to the bend in the river the momentum of the water push their carcasses to the outer edge of the bend. 当肿鼻角龙的尸体来到河流的转弯处，水流的动力将它们的尸体冲向河流转弯处外缘
侏罗纪搏击俱乐部
Stay Thin By Sleeping More A study published Monday found that people who sleep less tend to be fat, and experts said it's time find if more sleep will fight obesity. We've put so much emphasis on diet and exercise that we've failed to recognize the
早读英语精华本
Residents tended to stay thinner when a commuter train was added to their region, because of increased exercise walking to and from stops City planners and citizens alike frequently push for better public transportation. They argue that it can lessen
60秒科学
Two: Strength Training 减肥之二：力量训练 Strength training or resistance exercises use your existing muscular strength to improve muscle mass and burn fat. The result is more lean muscle mas
奥运英语
City planners and citizens alike frequently push for better public transportation. They argue that it can lessen traffic and reduce emissions from cars. Now theres a new reason to be gung-ho about public transitit helps make people skinnier. Thats ac
Scientific American(七)月
Pharsalia Plantation Celebrates 200 with Old Time Music 法萨利亚种植园庆祝200周年 Thats old time American music to celebrate an anniversary -- for a house. Pharsalia Plantation is on a beautiful mountain country road in Virginia. You can u
2014年VOA慢速英语(七)月
AS IT IS 2015-03-04 What Can Help Jakarta's Huge Traffic Problem? 什么能够帮助雅加达庞大的交通问题? The Indonesian capital Jakarta has long been held up as an example of a major city that cannot stop nor support its continuing growth.
2015年VOA慢速英语(三)月
Russians Look Ahead to Mass Protest, Presidential Election Is Russias middle class on the march? People are angry, and are speaking out for clean elections and democracy. Two days after Russias largest democracy demonstration in a generation, Russian
VOA标准英语2011年(十二月)
Most Accurate Projection of Polar Ice Melt Produced to Date Measuring ice sheets is a tricky business. Over the last two decades, dozens of studies on ice loss have come up with conflicting results. Now, a global scientific team, reporting in the jou
VOA标准英语2012年(十二月)
Stay Thin by Sleeping More 想苗条多睡觉 A recent study found that people who sleep less tend to be fat，and experts said it's time to find out if more sleep will fight obesity. 最新的一项研究表明睡眠不足的人易发胖。专家们表
英语小达人
EXPLORATIONS – Albert Einstein By Marilyn Christiano Broadcast: Wednesday, February 23, 2005 VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, E
Explorations
By Pearse Lynch Nairobi 04 August 2006 Deep divisions within the transitional government of Somalia appear to be worsening, with four more ministers defecting from the administration. International observers fear rising tension in Somalia could engu
2006年VOA标准英语（八月）
今天我们要学的词是launch。 Launch, 有发起，创办的意思。巴基斯坦反对党领袖布托宣布，如果穆沙拉夫总统拒绝结束国家紧急状态，她就要在星期五发动大规模集会示威， Benazir Bhutto announced
英语每日一词
Americans were exposed to the terror of mass gun violence again on Wednesday, this time at a social services center in San Bernardino, California. The initial reports revealed a distressingly familiar pattern: A heavily armed active shooter or shoote
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今天我们要学的词是launch。 Launch, 有发起，创办的意思。巴基斯坦反对党领袖布托宣布，如果穆沙拉夫总统拒绝结束国家紧急状态，她就要在星期五发动大规模集会示威， Benazir Bhutto announced
英语单词荟萃