电子顺磁共振

efficiency-效率,功效 elaborate -精心计划的,详尽的 elastic -橡皮圈,松紧带 elbow -肘,肘部 elderly-较老的,年长的 elect -选举,推举 electrical -电的,电气科学的 electron-电子 electronic -电子的 elegant -优美的,文雅的 element -元素,要素 elementary-基本的,

发表于:2018-11-29 / 阅读(152) / 评论(0) 分类 用mp3背四级单词

In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo

发表于:2018-12-07 / 阅读(93) / 评论(0) 分类 英文杂志-Magazine

'Face Blind' People Cannot Remember Faces From VOA Learning English, this is the Health Lifestyle report. Some people are great at remembering faces. Once they meet you, they never forget how you look. They might say things like, I never forget a fac

发表于:2018-12-16 / 阅读(68) / 评论(0) 分类 2018年VOA慢速英语(十)月

By Melinda Smith Washington 30 March 2007 Since the mid-20th century the World Health Organization reports there has been an increase in the rate of breast cancer among women in developed countries. For decades, doctors have urged their patients to d

发表于:2018-12-16 / 阅读(170) / 评论(0) 分类 2007年VOA标准英语(三月)

Looking Into Your Brain Just Became Easier Researchers and engineers keep improving the machines that help doctors better understand and diagnose conditions that affect our brains. One of the goals is to find causes of Alzheimers and Parkinsons disea

发表于:2018-12-16 / 阅读(78) / 评论(0) 分类 VOA标准英语2016年(六月)

OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问

发表于:2018-12-19 / 阅读(64) / 评论(0) 分类 TED演讲教育篇

This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin

发表于:2018-12-24 / 阅读(113) / 评论(0) 分类 Scientific American(九)月

Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺

发表于:2019-01-03 / 阅读(186) / 评论(0) 分类 2017年VOA慢速英语(十)月

Searching the Internet can be a totally exhausting experience, as you bounce from one site to another to another, sometimes until you cant remember what you were looking for in the first place. But according to scientists at U.C.L.A., all that virtua

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 Scientific American(十)月

Despite Senate passage of its massive stimulus package and the U.S. banking bailout plan announced by Treasury Secretary Timothy Geithner, overseas markets did not react with enthusiasm. A screen showing stock prices at a local bank in Hong Kong, 11

发表于:2019-01-13 / 阅读(65) / 评论(0) 分类 VOA标准英语2009年(二月)

全息图或可与CT及超生扫描仪兼容 Since the 1980s, doctors have used Magnetic Resonance Imaging machines, or MRI scanners, to look into patients bodies without exposing them to the harmful effects of X-rays.An alternating magnetic field cr

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2016年(六月)

[0:0]efficiency效率,功效 [0:12.1950]elaborate elastic elbow elderly精心计划的,详尽的 橡皮图,松紧带 肘,肘部 较老的,年长的 [1:2.6076]elect electrical electron选举,推选 电的,电气科学的 电子 [1:41.1372]electronic elegant element elementary [2:36.2790]el

发表于:2019-01-16 / 阅读(174) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(83) / 评论(0) 分类 TED演讲教育篇

A-bomb, atomic bomb 原子弹 absorption 吸收 to accelerate 加速 accelerating chamber 加速室 accelerator 加速器 synchrocyclotron 同步回旋加速器 synchrotron 同步加速器 betatron 电子

发表于:2019-02-03 / 阅读(107) / 评论(0) 分类 英文语法词汇

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(107) / 评论(0) 分类 实用英语

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(98) / 评论(0) 分类 实用英语

What this means in practice is that you can never predict where an electron will be at any given moment. You can only list its probability of being there. In a sense, as Dennis Overbye has put it, an electron doesnt exist until it is observed. Or, pu

发表于:2019-02-17 / 阅读(61) / 评论(0) 分类 万物简史

Finally, in 1926, Heisenberg came up with a celebrated compromise, producing a new discipline that came to be known as quantum mechanics. At the heart of it was Heisenberg's Uncertainty Principle, which states that the electron is a particle but a pa

发表于:2019-02-17 / 阅读(66) / 评论(0) 分类 万物简史

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(72) / 评论(0) 分类 万物简史

The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen

发表于:2019-02-25 / 阅读(99) / 评论(0) 分类 双语有声阅读
学英语单词
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aken
an ace up one's sleeve
Ancyrochitina
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peched
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