单词：glass bulb mercury rectifier
单词：glass bulb mercury rectifier 相关文章
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
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
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
彭蒙惠英语
One of the two kitchen light bulbs was out. It was circular and fluorescent. He placed a chair under the light. He stood on the chair. He unscrewed three screws. He removed the plastic cover. He removed the bad bulb. He inserted a new one. He screwed
英文短篇故事（纽约）
We hope that everyone has some bright ideas in 2012! This episode it about coming up with new ideas and having realizations, and the expressions we can use to talk about this. Of course, were always brainstorming at Culips to come up with new ideas f
英语博客-北美风情
He turned on the light switch. The hall light went on. Then he heard a popping sound because the light bulb blew out. It was time to change the bulb. He went into the kitchen. He opened a kitchen cabinet. He looked at five different light bulbs. One
原版英语小短文
By Mario Ritter Broadcast: November 18, 2003 This is Steve Ember with the VOA Special English Agriculture Report. If you like flowers in the early spring, then the middle of autumn is an important tim
VOA2003（下）-农业与经济
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
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
2013年VOA慢速英语(四)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
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
英语新闻
今天我们要学的词是light-bulb moment。 Light-bulb moment, 电灯泡时刻，可不是当电灯泡的意思。 A light-bulb moment is when you have a sudden realization about something, 电灯泡时刻是指你突然醒悟的那一瞬间。 P
英语每日一词
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
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
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
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-
VOA常速英语2008年（二月）
今天我们要学的词是light-bulb moment。 Light-bulb moment, 电灯泡时刻，可不是当电灯泡的意思。 A light-bulb moment is when you have a sudden realization about something, 电灯泡时刻是指你突然醒悟的那一瞬间。 P
英语单词荟萃
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
自然百科2012年
标题配对题在雅思阅读考试中一直以来都占据重要地位，对于初涉雅思的学生来说尤其困难。虽然该题型在最近的考试中比重有所降低，但是由于其每个选项只能被选一次导致大片连环错的可
雅思英语