(测应力腐蚀)水银试验

VOICE ONE: Im Steve Ember. VOICE TWO: 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 as the Mercury Thirteen. They never reached

发表于:2018-12-07 / 阅读(122) / 评论(0) 分类 VOA慢速英语2007年(六)月

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(151) / 评论(0) 分类 2012年VOA慢速英语(七)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(158) / 评论(0) 分类 People in America

VOICE ONE: I'm Shirley Griffith. VOICE TWO: Alan Shepard waiting for launch into space on May 5, 1961 And I'm Steve Ember with the VOA Special English program People in America. Each week we tell about someone important in the history of the United

发表于:2018-12-15 / 阅读(134) / 评论(0) 分类 VOA慢速英语2008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(241) / 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(156) / 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(206) / 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(152) / 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(185) / 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(125) / 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(136) / 评论(0) 分类 2013年VOA慢速英语(四)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(126) / 评论(0) 分类 2018年NPR美国国家公共电台10月

EXPLORATIONS - Project Mercury: Soviet Successes Push U.S. to Build a Space Program From the Ground UpBy Marilyn Christiano and Frank Beardsley Broadcast: Wednesday, July 19, 2006 VOICE ONE: Explorati

发表于:2019-01-30 / 阅读(157) / 评论(0) 分类 2006年慢速英语(七)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(278) / 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(161) / 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(147) / 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(136) / 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(193) / 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(213) / 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(278) / 评论(0) 分类 自然百科2012年
学英语单词
A poor man's something
acetyltoluidine
agglomerate texture
apparelled
apx
Arnaud R.
assert yourself
aviaphobia, aviophibia
back in
bell-collar
belly wall
biromanticism
boardboy
calculation program
carryovers
causal chain
census-taking registration
Changjiang
chucklings
city man
clearing view disc
co-governance
Coelonema
Coleoidea
cone and plate viscosimeter
costimulates
density-governing factor
drag pinch rolls
drop shipment
edits-in
electrical excitability
embryonic layer
entrance jewel
februate
finding nemo
fixed preassigned multiple access
flyback kick
foreslowing
genus cimicifugas
genus Leitneria
golf widows
Gran Pajonal
hard surface in contact mask
hemitaxonus formosanus
hermodact
hexagonal rod
hillend
hippisley
histaminemia
ho-down
homochromatography
horner
hyperpneumatic
j. t.
karlovich
konike
lift link screw
Michailow's test
Moresby Seamount
MPCNL
multifactorial etiology
natural gas reinjection
Nephin Beg Range
NPS1
oafs
off-design
palaeozoic erathem
pancreatocholangiography
Pcbs
peccane
polycarpy
positive estuary
prediction market
quadratic potentiometer
raipe
ray-proof
redemption by drawing
reduction of capital stock
reflecting curb
resinoid group
rolled-thread screw
rom/ram terminal intelligence
roundaboutly
school dame
slow season
spread plate method
stormy wind
superclassical
synsepalum dulcificum
Talamone, G.di
tarpaulins
Tertinatine
Teteven
trench drain
turret finder
valve barrel
vestibulocochlear organ
Villavieja de Yeltes
virolymphocyte
Vostok ice core
wound-type die extrusion press
zero-point yield strength