单词：mercury ballast of gyrocompass
单词：mercury ballast of gyrocompass 相关文章
Part 13 Ballast handling 1. Scuppers plugged. 2. Open sea suction valve and report. 3. Sea suction valve closed. 4. Ballast pump stopped.
海事英语
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
ballast, ['bləst] n 压舱物（放在船舱或热气球吊篮里的重物，以增加稳定性）；（性格上的）稳定因素 【记】ball球，last最后－最后的球－船最底层放了好多球－压舱物 【类】ballast:instability＝
不择手段背单词
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
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
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
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
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）
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
Plants were world travelers, long before tourists like you and me, were able to fly off to vacation around the world. When Columbus sailed west, he was seeking precious spices of the Indies. He missed his original destination, but because he and othe
英语听力文摘 English Digest
heavyweight 重量级的，有影响力的人 We need some heavyweight partners. 我们需要一些重量级的合作伙伴。 He is a heavyweight in the IT business. 他是IT界的重量级人物。
愉悦口语
The Nautilus is made up of two hulls, one inside the other; between them, joining them together, are iron T-bars that give this ship the utmost rigidity. 诺第留斯号由双层船壳造成， 一层是内壳，另一层是外壳，两壳之间，用许
《海底两万里》中英双语有声读物
That's all? 仅仅这个数目吗？ That's all, Professor Aronnax, and the calculation is easy to check. 仅仅这个数目，阿龙纳斯先生。并且，很容易用计算来证实。 Now then, I have supplementary ballast tanks capable of shippi
《海底两万里》中英双语有声读物