标签：航天探测器 相关文章
AZUZ: Compared to earth's mass, Jupiter is thought to be much larger than that. And scientists say NASA's Juno spacecraft has led to new findings about Jupiter. For one thing, they believe the planet's surface has bands of gas and winds that flow ver
CNN美国有线新闻2018年4月
文本： Crack detectors work by sound. If you get two good eggs and just tap them together, you get a nice ringing noise if its good or a dull noise if its broken. And on the machines, youve got sensors and they touch the egg 16 times, each egg. An
跟着英剧练发音
LANDMINES KILL OR BADLY INJURE around 26,000 people every year. That is one person every 20 minutes. What is worse is that they keep causing damage for decades after wars have ended. There are about 100 million landmines buried just beneath the surf
高中二年级英语
The most powerful atom smasher ever built could make some bizarre discoveries, such as new forces of nature or even extra dimensions of space, after it's switched on in August. The Large Hadron Collider, or LHC, basically consists of a ring of super
国家地理2008年
Two sisters, four and six years old, died in a late-night fire that started because of an overloaded power strip. The girls were in an unattached garage that had been illegally converted into an apartment. The new apartment did not conform to Los Ang
365个英语简短小故事
Word had quickly got around. The French and British are sending reinforcement. Some go in small groups. This time they are around two hundred. At time of this week, there have been many more. After two days the British government will give a soldier
英伦广角
Soccer penalty kickers wearing motion sensors revealed that subtle body cues can give away which side of the net they're shooting for Those of you following the World Cup know that at this stage there can be no more draws. Ties are broken during over
60秒科学
By Paul Sisco Washington, D.C. 03 January 2007 watch Screening report Ever since the September 11th terrorist attacks on the United States, the need for airport security has led to a steady increase in the use and improvement of technology. One new
2007年VOA标准英语（一月）
Ten Years of Roving Around Mars 十年的火星游荡 WASHINGTON The U.S. space agency, NASA, is celebrating the 10th anniversary of its Mars Exploration Rover Mission (MER), which began with the arrival of its robotic vehicles Spirit and Opportunity
VOA标准英语2014年(一月)
Dawn Spacecraft Nears Rendezvous With Dwarf Planet Ceres 黎明号探测器成功将接近谷神星轨道 LOS ANGELES NASAs Dawn spacecraft is set to reach the dwarf planet Ceres in March and begin gathering clues about whether the icy body may have
VOA标准英语2015年(一月)
NASA Probing Secrets of Van Allen Radiation Belt 美国航天局探秘范艾伦辐射带 One of the first discoveries of the space age, made in 1958, was that the Earth is surrounded with a doughnut-shaped field of highly charged particles. It was na
VOA标准英语2014年(八月)
Australian Scientists Confirm Existence of Element 117 澳大利亚科学家证实117号元素的存在 Most of the naturally-occurring elements have already been discovered, but that does not mean that new elements cannot be created - only that they
VOA标准英语2014年(五月)
The most powerful atom smasher ever built could make some bizarre discoveries, such as new forces of nature or even extra dimensions of space, after it's switched on in August. The Large Hadron Collider, or LHC, basically consists of a ring of superc
自然百科2008年
T-Rex is impressive and it's powerful, but compare to Ankylosaurus, it is relatively lightly built. Protective plates made of bone and cartilage covered this lumbering creature from head to tail. Light, but extremely strong, the hide of Ankylosaurus
探索与发现2013年
By Paul Sisco Washington, DC 19 May 2006 watch Anthrax Detection report Anthrax Space age technology is playing a role in the war on terror. Paul Sisco reports on a device developed by the U.S. space
2006年VOA标准英语（五月）
A Deep Hole in the Pole AMANDA望远镜（新华社电讯稿用的是南极介子和高能中微子探测器阵列名字），被埋藏在南极冰块下1.5公里深处。路透社2001年3月21日报道，这台望远镜首次探测到中微子。中微
英语听力文摘 English Digest
The Beijing Hour Morning Edition Shane Bigham with you on this Monday, July 24th, 2017 Welcome to the Beijing Hour, coming to you live from the Chinese capital. Our news focus this morning... violence and insecurity in the Middle East... including an
The Beijing Hour 新闻纵贯线