单词：Inconel reflector
单词：Inconel reflector 相关文章
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
-French colonies are now reaching for the front line of the ally position, famous sunk lane, as you can see, just here. It was actually slightly deepen underneath those -...looks quiet. -It looks quuiet, but it's no quiet. There's a little bank just
探索与发现2015年
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Welcome to Words and Their Stories, from VOA Learning English. On this program we explore the origin and history of American expressions and teach you how to use them. Today we focus more on history than usage. We are going to answer an age-old quest
2017年VOA慢速英语(七)月
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
By Kurt Achin Seoul 27 September 2006 For an increasing number of South Koreans, being a family man means seeing less of the family than ever before. Many South Korean fathers stay at home and work while they send their wife and children abroad - of
2006年VOA标准英语（九月）
Morganfield Channels Bluesman Dad on 'Son Of The Seventh Son' Muddy Waters or Mud Morganfield? Its almost impossible to tell. Of course, nothing would please Mud more than hearing people say he sounds just like his late father Muddy Waters on the tra
VOA标准英语2012年(三月)
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
2016CRI中国国际广播电台
Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
I am David Forays. Reporting Iranqi troops advanced into the centre of Romati. The troops return to reclaim the city which was lost to Islamic State militants. Seven months ago supports men for Iraqis counter-terrorism service says there was fighting
探索与发现2015年
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件
探索与发现2015年
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
2016CRI中国国际广播电台