单词：parasitic reflector
单词：parasitic 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
Amber: Hello, I'm Amber, and youre listening to bbclearningenglish.com. Today, since we are a website, we join in celebrations for the 15th birthday of the World Wide Web! The World Wide Web has changed the lifestyle and working environment of people
英语听和读
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
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
Fruit flies are pretty small. But they laugh at a species of fly recently discovered in Thailand. Dubbed Euryplatea nanaknihali, this member of the phorid fly family is less than half a millimeter longa fifth the size of a fruit fly. But before you o
Scientific American(七)月
Researchers have developed a long-lasting capsule that, when swallowed, slowly releases medicine into the body. The researchers say the capsule was developed for treatment of the disease malaria. But they believe it could hold medicines for a number
2016年VOA慢速英语(十二)月
AS IT IS 2015-10-09 Belarus Writer Gets Nobel Literature Prize 白俄罗斯作家获得诺贝尔文学奖 Svetlana Alexievich of Belarus has won the Nobel Prize in Literature. The Nobel Prize committee in Stockholm, Sweden, called her writings a monu
2015年VOA慢速英语(十)月
By Carol Pearson Washington, D.C. 26 June 2007 Smallpox was the first infectious disease ever to be eradicated worldwide. But now, thanks to a two-decade campaign, guinea worm disease is about to be eradicated as well. Unlike smallpox, guinea worm di
2007年VOA标准英语（六月）
In the third millenium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. 公元前三千年，美索不达米亚国王在蜡质石板上记录并解释了他们的梦。 A thousand years later, Ancient Egyptians wrote a dr
TED演讲教育篇
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）
-Howard: One of us, one of us. 入伙万岁！入伙万岁！ -Penny: Well, what a thrill. thrill: 激动 多振奋人呀！ -Sheldon: You're sitting in my spot. 你坐我位置上了。 -Penny: Oh, jeez, you've got to be kidding me. jeez: 呀 天呀，
生活大爆炸第二季
How they toiled and sweated to get the hay in! 收割牧草时，他们干得多卖力！ But their efforts were rewarded, for the harvest was an even bigger success than they had hoped. 但他们的汗水并没有白流，因为这次丰收比他们先
动物农场 Animal Farm
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）
Jan Andersson from the Nobel Prize Committee in Physiology or Medicine explained why Tu Youyou won the Nobel Prize. Youyou Tu got half of this year's prize for her discovery of Artemisinin, and she did that from an herb, so she was the one who identi
英语新闻
所谓复杂的定语从句，是指一个句子带有两个或两个以上定语从句的结构。这类定语从句在结构上与先行词的关系比较复杂，有如下几种形式： 1.自由式定语从句 自由式定语从句是指一个句子
英语笔译
麦田怪圈不是我们干的。请用心想想吧。我们以你们认为不可能实现的速度飞行于群星间可你们还认为我们需要为了联络用途而压下麦秆？你们为什么还总是以为我们会在荒郊僻野着陆？ 我们
英语美文
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
有人说过：得句型结构得托福阅读。在这篇文章里，托福小编将为大家介绍一些托福阅读句型的结构，考生在进行托福阅读复习时不妨将这些结构方法运用起来，可以加快托福阅读的复习效率
托福英语