[化] 乙硫醇汞; 二乙硫基汞

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(191) / 评论(0) 分类 2014年VOA慢速英语(五)月

PEOPLE IN AMERICA -October 27, 2002: Alan Shepard By Avi Arditti VOICE ONE: I'm Shirley Griffith VOICE TWO: And I'm Steve Ember with the VOA Special English program, People in America. Each week we te

发表于:2018-12-15 / 阅读(147) / 评论(0) 分类 People in America

Superhero Thwarts Evil Nazi Plot in 'Captain America: The First Avenger' Acomic book super hero whose exploits began in the 1940's is back as one of this year's big action movies. Here's a look at Captain America: The First Avenger. General Patton ha

发表于:2018-12-16 / 阅读(111) / 评论(0) 分类 VOA标准英语2011年(八月)

Studies that will be released today show that fish, birds and mammals in New England have significant amounts of mercury in their bodies. The studies find the toxic metal in some unexpected habitats and they suggest that power plants in the Midwest a

发表于:2018-12-17 / 阅读(226) / 评论(0) 分类 2009年NPR美国国家公共电台7月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(142) / 评论(0) 分类 VOA双语新闻 2014年1月

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

发表于:2018-12-19 / 阅读(145) / 评论(0) 分类 彭蒙惠英语

How the 'Mercury 13' Led the Way for Women in the US Space Program Im Steve Ember. And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we tell about a program in the nineteen sixties to train women as astronauts. Today they are known

发表于:2019-01-12 / 阅读(117) / 评论(0) 分类 2013年VOA慢速英语(五)月

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(149) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(113) / 评论(0) 分类 白领英语晨读

SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The Goldman Environmental Prize By Broadcast: Tuesday, May 11, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm B

发表于:2019-01-30 / 阅读(272) / 评论(0) 分类 科技之光

The U.S. space agency(代理中介) has released the first ever image taken of the surface of Mercury from a spacecraft orbiting the planet. The black and white image, posted on the NASA website Tuesday, shows a surface pocked with craters of varying

发表于:2019-01-31 / 阅读(154) / 评论(0) 分类 英语新闻

The U.S. space agency NASAs Messenger probe(正直的,廉洁的 ) is scheduled to reach Mercury later this week, and become the first spacecraft to orbit the planet closest to the sun. During Messengers year-long orbital mission, scientists exp

发表于:2019-02-05 / 阅读(140) / 评论(0) 分类 英语新闻

The U.S. space probe MESSENGER is poised to enter orbit around Mercury(水银) early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting

发表于:2019-02-05 / 阅读(130) / 评论(0) 分类 英语新闻

Ever wanted to be an astronaut? Imagine it was you, who was heading to the hot zone of the two inner planets, where would you go? What would you see? And how would you survive? The latest robotic machines have revealed more about these worlds than ev

发表于:2019-02-05 / 阅读(181) / 评论(0) 分类 自然百科2012年

By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-

发表于:2019-02-06 / 阅读(205) / 评论(0) 分类 VOA常速英语2008年(二月)

Like Mercury, the earth takes a beating from the sun's violent temper. Flares, sun storms and other solar hissy fits can cause electronic mayhem for the satellites that roam above our heads. Fortunately, the earth is protected from this radiation by

发表于:2019-02-15 / 阅读(262) / 评论(0) 分类 自然百科2012年

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(143) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(158) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(176) / 评论(0) 分类 TED演讲教育篇
学英语单词
allele-trend
ankyrinB
asymmetric flight
basal cell hyperplasia of cervix uteri
battle-ready
beat pin
benzylphenyl carbamate
blind imitation
blink microscope
blood rain
bolyon
Borujerd
called someone out
carpentry shop
cellular spore
colo(u)r developing agent
column evaporation
common control mode
competent public officer
course-based
cuachicine
cultural of honor
deep-sea bacteria
delay function
dorsett
downstager
driving spring hanger
Edgehill
extensibility meter
fisheries products
forbidden zone for fishing
forward-curved blade
fovea costalis transversalis
francisations
funnel-shaped bay
geist
glass tube protector
Great Cumbrae
greif
Hahn oxine reagent
halkitis
harmonic extraction
homochronous insanity
hose-assembly
Hydrophyllaceae
i rays
I.P. (initial point)
immunoserum
impurifies
information-only
intermediate temperature varnish
inver grove heights
kit shortage notice
lag adjustment
last of chain
lava scum
log files
low quality airdry roughages
macro-cost
manufacturing contingences
marriageability
milk pea
molimens
molliturbels
more succinctly
multiple-wick oiler
mutate
nontheism
paulitz
pipeline engineering
polysphsgmogram
prefix code
pregnant
pretty cold
priming of tide
Punishment fits the crime.
Quranize
raindrop freezing
rare event
returns auger
rewena
roll separating mechanism
rosenonlactone
run for presidency
sand casting bed
Sandfly B.
shot glass
sibuteamine
Simple Simon
spit in the face of
spread oneself too thin
syllabicness
thermostabilities
time domain model vibration test technique
transaction processing benchmark
transhipped
trimethylol
Unisys
user I/O device
valve tubes
walkamerica
yusho