[医] 汞白垩

英语基础--《英语1000高频词汇》(英语学习必须熟悉的1000词汇) 这是英语词汇中最基础的、使用频率最高的,约1000个词汇,不管是中学毕业还是大学毕业,这1000个单词都应该非常熟悉,因为这些单词真的太基础了,使用频率非常高。 如果听过《朗文词典》能用3000以内的单词

发表于:2018-12-05 / 阅读(196) / 评论(0) 分类 英语1000高频词汇

Project Mercury: The American Space Program Begins SHIRLEY GRIFFITH: EXPLORATIONS -- a program in Special English by the Voice of America. (SOUND) That announcement was made May fifth, nineteen sixty-one. It was the first manned flight of project Mer

发表于:2018-12-07 / 阅读(178) / 评论(0) 分类 2012年VOA慢速英语(七)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(264) / 评论(0) 分类 2009年NPR美国国家公共电台7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(180) / 评论(0) 分类 彭蒙惠英语

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(250) / 评论(0) 分类 60秒科学

HEALTH REPORT – December 11, 2002: Mercury Levels in Fish By George Grow This is the VOA Special English Health Report. Two studies are adding to the debate about the health risks of eating fish con

发表于:2019-01-07 / 阅读(179) / 评论(0) 分类 健康与环境

VOICE ONE: EXPLORATIONS -- a program in Special English by the Voice of America. (SOUND) That announcement was made May fifth, nineteen sixty-one. It was the first manned flight of project Mercury. Today, Tony Riggs and Larry West tell about the beg

发表于:2019-01-11 / 阅读(229) / 评论(0) 分类 VOA慢速英语2009年(六)月

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(152) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - 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

发表于:2019-01-12 / 阅读(164) / 评论(0) 分类 2013年VOA慢速英语(四)月

EXPLORATIONS - Project Mercury: Alan Shepard Becomes the First American in Space STEVE EMBER: This is Steve Ember. SHIRLEY GRIFFITH: And this is Shirley Griffith with the VOA Special English program EXPLORATIONS. Today we finish the story of the firs

发表于:2019-01-12 / 阅读(178) / 评论(0) 分类 2012年VOA慢速英语(八)月

AILSA CHANG, HOST: Later tonight at Europe's spaceport in French Guiana, a probe is scheduled to lift off. Its goal, as NPR's Joe Palca reports, is to explore the mysteries of Mercury. JOE PALCA, BYLINE: Mercury is a funny little planet. Like the Ear

发表于:2019-01-17 / 阅读(186) / 评论(0) 分类 2018年NPR美国国家公共电台10月

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(309) / 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(193) / 评论(0) 分类 英语新闻

Reason/ you are going to go to Mercury as a travel destination would be this night sight view because it's going to be highly unique in the solar system. You have sodium thats atoms that are streaming off and giving enough to see yellow light, so you

发表于:2019-02-05 / 阅读(201) / 评论(0) 分类 自然百科2012年

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(183) / 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(170) / 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(221) / 评论(0) 分类 自然百科2012年

Everyone likes a vacation in a warm climate, but how about a trip to two planets that are as hot as hell? If you are walking on the surface of Mercury, you need one heck of a spacesuit. Mysterious Mercury appears lifeless and desolate, but hidden dee

发表于:2019-02-05 / 阅读(234) / 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(240) / 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(308) / 评论(0) 分类 自然百科2012年
学英语单词
Ac lent
aileron buzz
aircodenser
allospecifically
alloy steel rail
analysis of time series
anti-Markovnikov
aras r.
astilbes
balanced mixer
beautyberries
boda glasbruk
bonacon
canned poultry
cargo dues
celestinian
cheerish
circular cooler
coactivates
continuous handrail
contractedness
cotton plant
coupler knuckle thrower
dewey decimal systems
diffluan
Dillon R.
dispersed shrinkage
dual federalism
dynamic function survey meter
ellipsoidal drift tube
epitympanums
erysipelas of auricle
explosive valve firing circuit
forced bet
frontosquamosal
frucci
fulldress
gate system
hegemonistic
hemiautotroph
hi-technology
high chairs
ice-cutter
illuminated grid
imidazolidinone
inspection plate
jacquard card lecer
Jai Hind
jovanka
key item selection
kick in the butt
kiku oil
l-
lateral line nerves
Lauben
lauril
let the clock run out
liquid drop separator
loomings
lusardi
magnetic mine
make it hot for
marcels
mcleay
middies
milacki
moment taken about the point of fixation
morinellus
nebiims
no test
parabenzoquinone dioxime
pararetrovirus
precision high speed tool maker lathe
press button key
pseudoprofundity
R4749
rear end of spindle
rett
runsy
Saussurea pulchra
schmack
scoubidou
services
Siberian iris
SIGMAP
silver-bush
sinapize
slew type floating crane
solar forecast center
stake outward
tawakkul
technology-sharing
to beat a dead horse
toxinum staphylococcus detexicatum
transcutaneous intrahepatic cholangiography
transverse colostomy
Tyroliennes
undermentioned
V-bottom
vascular layer
written request of patent
zingier