电子轨迹
[物] 电子轨道

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(228) / 评论(0) 分类 英文杂志-Magazine

Broadcast: Jan 02 2003 China has announced it plans to launch its first manned spacecraft in the second half of this year to become only the third country to do so. The news comes as China's fourth un

发表于:2018-12-08 / 阅读(187) / 评论(0) 分类 VOA2003(上)-科技先知

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(249) / 评论(0) 分类 Scientific American(九)月

Chaotic Orbits Could Cause Catastrophic Collision火星真的会撞地球? Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppo

发表于:2018-12-24 / 阅读(222) / 评论(0) 分类 2017年Scientific American(四)月

A Stationary Satellite, part 2 A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. Cool! you say. Id like to have one of those about twenty feet over my house. S

发表于:2018-12-31 / 阅读(167) / 评论(0) 分类 英语听力文摘 English Digest

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(320) / 评论(0) 分类 2017年VOA慢速英语(十)月

Comet 彗星 Do you know what a comet is? 你知道彗星是什么吗? A comet is an object in the solar system. 彗星是太阳系中的天体。 It travels around the sun like the planets. 它像其它行星一样绕着太阳转。 Then, why don'

发表于:2019-01-10 / 阅读(183) / 评论(0) 分类 与美国小学生一起学英文第11册

Orbit 轨道 Do you know what an orbit is? 你知道什么是轨道吗? An orbit is the path of a planet when it moves around the sun. 轨道是行星围绕太阳运动的轨迹。 It is similar to a cycling track. 它类似于自行车赛道。 As

发表于:2019-01-10 / 阅读(204) / 评论(0) 分类 与美国小学生一起学英文第12册

Bill Shorten is preparing to sell his policy of reversal on the asylum boat turnback to ALP National Conference. Several Labor MPs have strongly criticized the opposition leader's decision to support the government's turnback policy. Bill Shorten's f

发表于:2019-01-16 / 阅读(162) / 评论(0) 分类 澳洲ABC新闻快递2015年

[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(339) / 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(233) / 评论(0) 分类 TED演讲教育篇

Chaotic Orbits Could Cause Catastrophic Collision Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppositethey glide through sp

发表于:2019-01-20 / 阅读(182) / 评论(0) 分类 2018年科学美国人5月

Chaotic Orbits Could Cause Catastrophic Collision Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppositethey glide through sp

发表于:2019-01-20 / 阅读(176) / 评论(0) 分类 2018年科学美国人4月

One type of giant planet orbits very close to its star, we call them hot Jupiters because these Jupiter-like planets are so close that they are blowtorched by the intense heat from the star. The other sort of planet we have found is also bizarre. Wev

发表于:2019-01-22 / 阅读(171) / 评论(0) 分类 自然百科2011年

If there's a black hole at the center of our galaxy, that's gonna force these objects that are really close to the black hole to move much faster than they would move if there were no black holes. So the first thing you wanted to see is there are ver

发表于:2019-01-23 / 阅读(158) / 评论(0) 分类 探索与发现2013年

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(235) / 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(203) / 评论(0) 分类 实用英语

天文学在我们听力讲座里面算是出现频率较高的话题了,在目前所有的176篇讲座里一共有14篇天文学类的文章,且都是比较有难度的,可以说,天文学类算是我们讲座里的一个重点也是难点了。

发表于:2019-02-09 / 阅读(194) / 评论(0) 分类 托福英语

It was while puzzling over this problem that Bohr was struck by a solution and dashed off his famous paper. Called On the Constitutions of Atoms and Molecules, the paper explained how electrons could keep from falling into the nucleus by suggesting t

发表于:2019-02-17 / 阅读(176) / 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(240) / 评论(0) 分类 双语有声阅读
学英语单词
air-control center
alchermes
ano
area control method
b-complex
box header
broadside antenna
busy indicator
certified mail
chairer
chirashi
coherent derived unit of measurement
conformational search
controversialities
credit-and-debit economy
cubhunting
curtainless
cutting survey
data flow circuit
eddy diffusivity of momentum
empty chair
esiatron
executive link
feed-water connection
flip chip on board
flush-type instrument
foetidas
graphitic carbon
grease characteristic
harran
iodomethyl cyanide
Kirakira
Line turnaround.
livefood
luteas
mathele
measuring technique
media representation of innovation
mission sequence
molligut
murderous vilain
muskroot
nocturne
north-north-westwards
northern cricket frog
not have a clue
ntid
ox-pecker
peakflowmeters
phylloid
pist
pit bull
portment
prabal
preost
privacy compromise
projet
puch
pull out type fracture
raccoonish
reentry systems environmental protection
register of deeds
reversible tractor
rheumatism weed
Rock-Eval pyrolysis
rocket armament
Round Lot Trade
Saint Gervasius' disease
sawtooth type cutter
serangium japonicum
sniff valve
space dynamics
spherical vessel
spring up in sb's mind
Stagg
static flow
storys
sweeping board
Talc-chlorite
targu-mures (tirgu mures)
telemundo
thiapyrones
thickness distance
Thiersch's canaliculi
threshold logic unit
tildes
Tradewater
Trichogaster
tumor of penis
ultraviolet erasing
unattended stand-by-time
unequal distribution
unexcused
uniform grid
unmarried man
unplumes
use without compensation
ventriculo-angiographic system
walking-around money
wavestrip
whoozits
X engineering