子数密度

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(199) / 评论(0) 分类 Scientific American(十二)月

From VOA Learning English, this is the Health Lifestyle report. From Asia to Europe to North America, poor air quality is making people sick and, in some cases, killing them at an early age. Air pollution causes six million premature deaths every yea

发表于:2018-12-07 / 阅读(138) / 评论(0) 分类 2017年VOA慢速英语(四)月

New Words 2B @ unexpected a. not expected and therefore causing surprise 想不到的,意外的 @ strengthen v. become strong or make sth. stronger (使)变强;加强;增强 @ succession n. [sing.] a number of people or things of the same k

发表于:2018-12-17 / 阅读(105) / 评论(0) 分类 新视野大学英语读写教程词汇 第三册

OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想:我知道摩尔是什么, it's a small furry creature that digs holes in the ground

发表于:2018-12-18 / 阅读(121) / 评论(0) 分类 TED演讲教育篇

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Athletes have obviously been tempted to use performance enhancing anabolic steroids. Drug testing may discourage such use. But a new study finds that some of the perfo

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 Scientific American(九)月

[00:07.21]NASA's Stardust spacecraft has successfully deployed a device that will collect extremely small particles in space. [00:16.95]The particles are called dust. [00:19.72]They form a stream of particles that flows through our solar system. [00:

发表于:2018-12-26 / 阅读(101) / 评论(0) 分类 美国英语听力80篇

[00:06.97]An Israeli study has shown that air pollution from cities and industry can reduce rain and snowfall. [00:17.53]It says the problem appears to be linked to the number of pollution particles in clouds. [00:24.82]Daniel Rosenfeld of Hebrew Uni

发表于:2018-12-26 / 阅读(118) / 评论(0) 分类 美国英语听力80篇

Big City Killer If the cigarettes don't get 1 you the traffic pollution will. Up to a fifth of all lung cancer deaths in cities are caused by tiny particles of pollution, most of them from vehicle exh

发表于:2018-12-30 / 阅读(151) / 评论(0) 分类 英语沙龙2004全年合辑上

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious problem that has been affecting some of the big cities in China: that's air pollution. Finn:

发表于:2019-01-07 / 阅读(123) / 评论(0) 分类 六分钟英语

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter?Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 Scientific American(四)月

SCIENCE IN THE NEWS - December 10, 2002: Snow By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent dev

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 科技之光

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell you everything you wanted to know about snow. (MUSIC) FAITH LAPIDUS: Winter has returned to northern parts of t

发表于:2019-01-11 / 阅读(125) / 评论(0) 分类 2011年VOA慢速英语(一)月

By Anjana Pasricha New Delhi 20 August 2006 Indian minister for Communications and IT Dayanidhi Maran, right, and Chief Minister of Jammu Kashmir state Mufti Mohammed Sayeed during launch of network expansion in Srinagar, India (File photo) In India

发表于:2019-01-13 / 阅读(188) / 评论(0) 分类 2006年VOA标准英语(八月)

Study: Upper-Atmosphere Particles Slow Pace of Global Warming A recent study finds tiny particles suspended high in Earths atmosphere are having a greater impact on global climate than previously believed. The airborne particles, known as aerosols, a

发表于:2019-01-14 / 阅读(117) / 评论(0) 分类 VOA标准英语2011年(八月)

SCIENCE IN THE NEWS - Winter Cold: Everything You Ever Wanted to Know About SnowBy George Grow Broadcast: Tuesday, January 10, 2006 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob D

发表于:2019-01-16 / 阅读(160) / 评论(0) 分类 2006年慢速英语(一)月

French fries are delicious. French fries with ketchup are a little slice of heaven. 我们都知道炸薯条很好吃,再配上番茄酱简直就是人间美味。 The problem is it's basically impossible to pour exactly the right amount. 但问题是

发表于:2019-01-17 / 阅读(150) / 评论(0) 分类 TED演讲教育篇

BEIJING, Jan. 29 (Xinhua) -- Thirty percent of official cars in Beijing should not be used when there is extremely bad pollution, traffic authorities confirmed Tuesday. The order was implemented on Monday evening to help combat the fourth round of he

发表于:2019-02-04 / 阅读(257) / 评论(0) 分类 英语新闻

If you thought Russia's recent efforts to prevent rain in the sky from dampening holiday spirits represented the ultimate in scientific stage management, you ain't seen nothing yet. 如果你认为俄罗斯最近为了阻止雨水毁掉节日氛围的努

发表于:2019-02-09 / 阅读(147) / 评论(0) 分类 实用英语

Once stimulated, these muscles go to work and cause us to forcefully expel air from the mouth and nose. Or, in other words, we sneeze. Because the nose lining tends to swell when we lie down, making it even more sensitive to sneeze-causing particles,

发表于:2019-02-23 / 阅读(393) / 评论(0) 分类 英语时差8,16

Certainly there is no shortage of energy in the world above our heads. One thunderstorm, it has been calculated, can contain an amount of energy equivalent to four days' use of electricity for the whole United States. In the right conditions, storm c

发表于:2019-02-25 / 阅读(141) / 评论(0) 分类 万物简史
学英语单词
absorptive tissue
aggressive growth fund
algebraic groups over a local field
anabiont
arthrogrypotic
average number of defects
be at one's books
bond notes
bulbothrix tabacina
chordee of penis
cipotanea (cipotania)
circumcized
collosal
company rig
confirmation requests
Crosses at
cylindrical cooler
dedicated network
deliver newspapers
draft forward
easing out line
egg-timers
EHX (external heat exchanger)
facies articularis tuberculi costae
flow experience
frondent
Garcinia collina Vieill.
girays
Global Virtual Private Network
grm.
gups
guyour
gypsification
hairdryer
Han character
hardware firmware software trade-off
high-returns
horizontal strip storage
horsefleshes
huam
hybrider
hysterotrachelotomy
immediate families
initial-access time
Ligularia odontomanes
long distance mobile phone
luminous sensitivity threshold
Madurese
main steam turbine gear unit
manzana
methenamine oxymethylsulfonate
Midwest City
monopolisms
National Health Service
neolitsea ovatus f. delfoidea (baker) ching
New Woodstock
nitrobenzylthioinosine
nominal height
non-return-to-zero change
noplaces
normal bubble
nurture of fish fingerlings
nyt
olio
pedomorphic
Penyu, Kep.
phenomenological
placer iron
plesiops verecundus
plot dibbler
pneumatic concrete vibrator
powdered toner
preforging,blocking
pressure regulating screw
quenching and age-hardening
qui-etly
radio coding
rest switch
rhizoma anemones altaicae
sasas-s
shaking sleeve
slitting
subsynchronous reluctance motor
sweep-seine
tank pad
tapered shoulder
tarsectomy
the association francais pour la normalisation
thermal activation energy
thiopental sodium
trevithicks
tri-weekly
twinflowers
Uragoga ipecacuanha Baillon
value creation
valve-box
vitreous copper (chalcocite)
warin
ways and means committees
where the action is
wire entanglements
zealants