氯汞丙脲

VOA慢速英语2012 Project Mercury: The American Space Program Begins

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(156) / 评论(0)

2012年VOA慢速英语(七)月

2005年NPR美国国家公共电台三月-Studies Find High Mercury Levels in the W

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(248) / 评论(0)

2009年NPR美国国家公共电台7月

彭蒙惠英语：The Mercury Mess

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(161) / 评论(0)

彭蒙惠英语

60秒科学:Mercury Fillings Seem Safer over Time

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(212) / 评论(0)

60秒科学

AGRICULTURE REPORT - Poplar Trees as Pollution Fighters

AGRICULTURE REPORT - Poplar Trees as Pollution Fighters By Mario Ritter Broadcast: Tuesday, August 10, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Poplar trees can be cut

发表于:2019-01-02 / 阅读(155) / 评论(0)

农业与发展

HEALTH REPORT - Mercury Levels in Fish

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(156) / 评论(0)

健康与环境

VOA慢速英语2009-EXPLORATIONS - Project Mercury: The US Space

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(189) / 评论(0)

VOA慢速英语2009年（六）月

VOA慢速英语2013 How the 'Mercury 13' Led the Way for Women in the US Space Program

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(131) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2013 EXPLORATIONS - How the 'Mercury 13' Led the Way for Women in the US Space Program

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(141) / 评论(0)

2013年VOA慢速英语(四)月

VOA慢速英语2012 EXPLORATIONS - Project Mercury: Alan Shepard Becomes the First American in Space

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(154) / 评论(0)

2012年VOA慢速英语(八)月

美国国家公共电台 NPR A Slow Trip To A Hot Planet: Spacecraft Launches For Mission To Mercury

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(152) / 评论(0)

2018年NPR美国国家公共电台10月

SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The G

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(284) / 评论(0)

科技之光

MESSENGER Probe Sends First Mercury Images

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(164) / 评论(0)

英语新闻

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-8

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(166) / 评论(0)

自然百科2012年

NASA Messenger Probe Set for Historic Orbit Around Mercury

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(152) / 评论(0)

英语新闻

MESSENGER Spacecraft Will Be First to Orbit Planet Mercury

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(142) / 评论(0)

英语新闻

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-2

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(199) / 评论(0)

自然百科2012年

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-1

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(206) / 评论(0)

自然百科2012年

VOA常速英语2008年-Mercury Seen in New Light

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(216) / 评论(0)

VOA常速英语2008年（二月）

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-7

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(283) / 评论(0)

自然百科2012年

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