质量分析离子动能度谱术

I always connected more with New Moon. I really understood where he's coming from, and I want to get more the character which it shows in New Moon and Twilight. But it was difficult to make , you know, Everyone was worried about me, looked too depres

发表于:2018-12-07 / 阅读(154) / 评论(0) 分类 访谈录2009

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

发表于:2018-12-07 / 阅读(164) / 评论(0) 分类 VOA2003(上)-科技导航

Potential energy in a crossbow When we think of the concept of energy, we often think of objects in motion: a car rolling down a hill or a jogger running up a hill. This kind of energy-in-motion, called kinetic energy, isnt the only kind of energy. A

发表于:2018-12-27 / 阅读(116) / 评论(0) 分类 英语时差8,16

When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future. At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy

发表于:2018-12-30 / 阅读(142) / 评论(0) 分类 国家地理2008年

It's a workout with two goals, mean green students are doing their bodies and the environment a favor when they hop on these machines. When you talk about energy, you think about like the windmill and there the water and other things producing energy

发表于:2019-01-07 / 阅读(130) / 评论(0) 分类 万花筒2011年

This is Scientific American's 60 seconds science. I'm Kellen Horgon. This will just take a minute. Have you ever wondered what happens to mosquitos in the rain, a raindrop is like 15 times heavier than those little suckers. So getting hit by one, he'

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(六)月

US Agency Announces Wave Energy Prize Competition 美国能源部发起能源奖竞争 Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Ene

发表于:2019-01-12 / 阅读(150) / 评论(0) 分类 2015年VOA慢速英语(五)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

发表于:2019-01-13 / 阅读(136) / 评论(0) 分类 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

发表于:2019-01-14 / 阅读(158) / 评论(0) 分类 VOA标准英语2012年(十二月)

Science and Technology 科技 Looking for the Higgs 捕获希格斯粒子 Enemy in sight? 敌军现身? The search for the Higgs boson is closing in on its quarry 希格斯玻色子的研究逼近其目标 ON JULY 22nd two teams of researchers base

发表于:2019-01-26 / 阅读(120) / 评论(0) 分类 经济学人科技系列

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

发表于:2019-01-28 / 阅读(171) / 评论(0) 分类 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

发表于:2019-01-31 / 阅读(181) / 评论(0) 分类 2006年VOA标准英语(八月)

By Carolyn Weaver Washington, DC 09 February 2006 watch Brookhaven report Experimental results at Brookhaven National Laboratory’s supercollider that replicate in miniature the “Big Bang,” when

发表于:2019-01-31 / 阅读(368) / 评论(0) 分类 2006年VOA标准英语(二月)

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(177) / 评论(0) 分类 英文语法词汇

matter 物质 energy 能 vacuum 真空 liquid 液体 fluid 流体 solid 固体 body 物体 mass 质量 weight 重量 density 密度 specific gravity 比重 gravity 重力 velocity 速度 kinetic energy

发表于:2019-02-07 / 阅读(149) / 评论(0) 分类 英文语法词汇

How to Create Passion Anywhere and Anytime Remember Science class? Mr. Thatcher, sophomore year in high school, taught us about potential and kinetic energy. I was way more interested in Pam Miller, who sat perilously close to me. But on Mr Thatcher

发表于:2019-02-11 / 阅读(145) / 评论(0) 分类 阅读空间

His famous equation, E =mc 2 , did not appear with the paper, but came in a brief supplement that followed a few months later. As you will recall from school days, E in the equation stands for energy, m for mass, and c 2 for the speed of light square

发表于:2019-02-17 / 阅读(123) / 评论(0) 分类 万物简史

Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量,包括物体的,微粒的或质点集的运动等。 势能(Potential energy )是位置的函数,例如把一个

发表于:2019-02-24 / 阅读(116) / 评论(0) 分类 英语听力文摘 English Digest

Sit on a swing, let someone push you, and away you go. But what happens if the person who pushed you walks away, and you want to swing faster and higher. If you've ever been in the second grade, you know the solution to that. Just start pumping your

发表于:2019-03-06 / 阅读(241) / 评论(0) 分类 英语时差8,16

The Heat Is On 热传递,是热从温度高的物体传到温度低的物体,或者从物体的高温部分传到低温部分的过程。热传递是自然界普遍存在的一种自然现象。只要物体之间或同一物体的不同部分之间

发表于:2019-03-09 / 阅读(172) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
accessorising
airway bill, air waybill
anthemis arvenses
associated ship
atmocautery
Bayesian theory
best effort synchronization
Betma
bulb for endoscope
camphamedrine
capitalistic
caustic bottoms
censitary
central cyanosis
charcoals
childhoodlike
CM (center of mass)
co-chairperson
convex-concave function
countersunk oval head screw
dandyishly
depreciation of major repair
destination accumulator
dietary fiber
doggy woggies
drip impression
El Mangote
elicitation of a selling price
endotestas
equiponderation
Euler-Rodrigues parameter
evergreen huckleberries
famble-cheat
Female Eunuch
fiber baskets
first harmonic current
flame structure
gable roofs
Gayny
get a job
grizely
gutter wound
Habenaria leptoloba
high pressure steam packing
hla antigens
hold contract
in someone's discretion
inert gas generator
interparticle friction
interpolation table
jaw winking syndrome
Johnjoe
knor
langs
laser bounce
lightbars
load task name
lower stage
make high profits
mantee
mantlest
melms
mercurobutol
milk shrimp
minor synchronization
monolithic quartz crystal filter
Mwadi-Kalumbu
noncognate
olein soap
on-plant use
overall sound pressure level
Panenka penalty
Paris verticillata
Primula sinodenticulata
puborectal muscle
pygmy owl
quattro coronati (mediaeval italy)
rectangular column
repossess
resource evaluation matrix
rocker
rote teaching
securing arrangement
shit yeah
shit-storm
slushings
stipple cells
sulfenamides
supersymmetrical
supraoccipital
tall herbage
tamboti
The bishop has set his foot in it.
theory of functions of a complex variable
thin film field-emission cathode
Torfufell
tortora
trachyandesite(trachyteandesite)
track obstruction
Vibrionaceae
white-bellied swallow
whole gip