能量质量当量

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(90) / 评论(0) 分类 VOA2003(上)-科技导航

Stand Clear Of The Doors: TV Finally Gets On Board With Mass Transit play pause stop mute unmute max volume 00:0003:47repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your F

发表于:2018-12-17 / 阅读(53) / 评论(0) 分类 2016年NPR美国国家公共电台12月

Dealing with a Mass Transit Strike Marge: Where have you been? You should have been home over two hours ago! Homer: Ive been trying to get home. Havent you been watching the news? The transportation workers union has voted to strike. There was a mass

发表于:2018-12-27 / 阅读(80) / 评论(0) 分类 2014年ESL之旅行交通购物

A gunman in Texas shot and killed 26 people in a church in the small community of Southerland Springs, Texas on Sunday. At least 20 people were injured in the shooting. Victims included children and the elderly. The suspected gunman is also dead. The

发表于:2019-01-03 / 阅读(71) / 评论(0) 分类 2017年VOA慢速英语(十一)月

Mass School Shootings Mostly in Small US Towns In the United States, mass school shootings are most likely to happen in small towns and suburban areas. One example is the shooting last week at a high school in Santa Fe, Texas. Ten people died in the

发表于:2019-01-03 / 阅读(105) / 评论(0) 分类 2018年VOA慢速英语(五)月

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(321) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

One hundred years ago today, September (the) 27th, 1905, a physics paper was dropped into the mail, addressed to a German journal called AT. The paper was penned by a 26-year-old Swiss patent clerk with dark curly hair years before he sprouted that s

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 2005年NPR美国国家公共电台

By Nick Wadhams Nairobi 11 January 2008 Kenya's political opposition says mediation efforts with the government over Kenya's flawed December elections have collapsed and the opposition is now calling for mass rallies across the country next week. Nic

发表于:2019-01-13 / 阅读(76) / 评论(0) 分类 VOA标准英语2008年(一月)

DAVID GREENE, HOST: We now know that the man who killed 26 people in a tiny Texas church on Sunday had been court-martialed and discharged from the Air Force for assaulting his wife and child. And authorities say that Devin Patrick Kelley sent threat

发表于:2019-01-16 / 阅读(63) / 评论(0) 分类 2017年NPR美国国家公共电台11月

MICHEL MARTIN, HOST: In Thousand Oaks, Calif., Wednesday, 12 people were killed in a Western-themed bar before the shooter is believed to have turned the gun on himself. It has become an all-too-common scene. According to Gun Violence Archive, an ind

发表于:2019-01-17 / 阅读(68) / 评论(0) 分类 2018年NPR美国国家公共电台11月

The mystery of what could count for the quasars' extraordinary brightness was the hot topic in astronomy during the 1960s. As astronomers began to grapple with the new enigmatic objects that had been found by the radio telescopes, one astronomer, kee

发表于:2019-01-23 / 阅读(59) / 评论(0) 分类 探索与发现2013年

The explosion generated a shockwave so massive it wasdetected over 15,000 kilometres away. The low-frequency waves were picked up bymonitoring stations. So it is kind of like a listening network around theworld. Thats right. Theyre not set up for fir

发表于:2019-01-23 / 阅读(52) / 评论(0) 分类 探索与发现2014年

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(56) / 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(92) / 评论(0) 分类 Explorations

By Gilbert da Costa Abuja 11 September 2006 Federal workers in Nigerian are bracing themselves for mass layoffs following a weekend announcement that some 15,000 workers are to be let go this month. Union officials are reacting angrily to the plan a

发表于:2019-01-31 / 阅读(166) / 评论(0) 分类 2006年VOA标准英语(九月)

By Barbara Schoetzau New York 20 April 2008 Pope Benedict XVI ended his six-day visit to the United States with a jubilant mass at the 57,000-seat Yankee Stadium. From VOA's New York Bureau, correspondent Barbara Schoetzau reports the leader of the w

发表于:2019-01-31 / 阅读(96) / 评论(0) 分类 VOA常速英语2008年(四月)

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(100) / 评论(0) 分类 英文语法词汇

China opposes proliferation of weapons of mass destruction: FM spokesman BEIJING, Nov. 14 (Xinhua) -- China opposes the proliferation of weapons of mass destruction and their means of delivery, Foreign Ministry spokesman Hong Lei reiterated at a regu

发表于:2019-02-03 / 阅读(95) / 评论(0) 分类 英语新闻

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(64) / 评论(0) 分类 万物简史

A mass rally and parade has been held in DPRK's capital a day after the Worker's Party wrapped up its first congress in 36 years. Hundreds of thousands of people were seen marching through the main ceremonial square. Participants in Pyongyang practic

发表于:2019-02-18 / 阅读(98) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
aa clinker
abrotanum
absolute urgency
adjusting wrench
airfield lighting
ansu apricot
Antimicina
aromatic copolyurea
asphalt gutter
auditoky after-effect
batchtype
be tolerant of sth.
bedilt
blickensderfer
brasels
break-even level
broadhead
bucksheer
buffing wheel
Bulgarophone
Caleruega
calpers
caption nut
cockney dom
cost of insurance
currency arbitrage
current action
derived table
diametral pyramid
dichlorphenamide
duskies
environment analysis
equilibrium radiation
exclusive exchange line
extrasynaptics
fall-guy
fauck's boring method
field scabious
finger setting
fox-trotting
frechet differentiable operator
frictional roll rice polisher
Gaspar.
genus dipogons
group design
hyperreaders
infrared searching and tracking
inherent statistical uncertainty
internal function register
Japanese schistosomiasis
Jita
large scale land holdings
Larry Stylinson
larval pneumonia
lead caproate
lethargy
Lineker
mangatany
martyrion, martyrium
metabolians
msof
Mt. Vesuvius
mud program
needle-cast of conifers
nickel oxide
North Caribou L.
obligate saprophyte
orientational drawing
page buffer storage
pattern replacement method
peanut allergy
Perfekthion
peri-choroidal
phyllosticta calystegiae sacc.
pilefollower
pin moneys
premenstrua
price wage spiral
radiation modes
recirculating heater
resistance minimum
Rhododendron souliei
rig iron
rolled shape steel reinforced concrete bridge
running joke
Sand Creek
Sayre's operation
scrofulide
secondary hypothermia
seropurulent exudate
skim bob
slag notch aperture
squeeges
stability of system
submerged decompression chamber
Sylvius' ventricle
thermocouple-protection tube
underhand single stope
undulation hypothesis
vault rib
wall and crown knot
Warden-court