单词：epicholestanol
[医] 表二氢胆甾醇
单词：epicholestanol 相关文章
It means that Silk and Ree's theory may be right and if it is also right that supermassive black holes helped trigger star formation, then it must mean that all giant black holes and their galaxies ar
超大质量黑洞
Four times a year, Ghez focuses the telescope on the stars of the very heart of our Milky Way. She is looking for the telltale high speeds that reveal the presence of a black hole. The center of the M
超大质量黑洞
In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou
超大质量黑洞
When the results came down from the telescope he saw something that was completely unexpected. The picture from the active galaxy where he hoped to find a black hole was unreadable. NGC 1068 was just
超大质量黑洞
This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a
超大质量黑洞
By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a galaxy nearby which is called NGC 1068, an active galaxy, w
超大质量黑洞
When it's feeding, a giant black hole creates a bright burning gas disk around it and then for some reason, it stops feeding, leaving a dark, deadly core lurking menacingly in the center of the galaxy
超大质量黑洞
Those stars don't feel the black hole. They feel the rest of the stars in the galaxy. They don't know or care that the black hole is there. If you took the black hole away from the galaxy, they would
超大质量黑洞
If, as it now seems, every single galaxy has a black hole at its heart, this can't be a coincidence. Perhaps black holes are an essential part of what galaxies are and how they work. No one had expect
超大质量黑洞
This correlation is the most important thing we've learned about supermassive black hole so far. Astronomers are always looking for correlations. Whenever you find one that's really tight like this on
超大质量黑洞
Silk realized that the energy from this newly formed quasar would create intense temperature changes in the surrounding gas. This would cause the gas around the black hole and its newly formed quasar
超大质量黑洞
By Benjamin Sand Muzaffarabad 11 January 2006 A Kashmiri girl sings to her class in a tent school in a refugee camp in Muzaffarabad, Monday, Dec. 26, 2005 Thousands of students across Pakistan's devas
2006年VOA标准英语（一月）
This is a short story about Hungry Wolf. Once, a wolf was very hungry. It looked for food here and there. But it couldn't get any. At last it found a loaf of bread and piece of meat in the hole of a tree. The hungry wolf squeezed into the hole. It at
英语小短文
BBC Learning English Weekender Polar Explorer Amber: Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to an interview with explorer, Rosie Stancer. In March, Rosie sets off on her latest expedition walki
Weekender
AMERICAN MOSAIC -April 5, 2002: Berklee School of Music album / A question about Easter / A museum show honoring three female artists HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Spe
American Mosaic
By Benjamin Sand Islamabad 03 July 2007 Pakistani security forces have exchanged gunfire with hundreds of students holed up inside a radical mosque in central Islamabad. Officials have confirmed six deaths, including security personnel and students,
2007年VOA标准英语（七月）
By Benjamin Sand Islamabad 04 July 2007 Pakistani officials warned heavily armed militants holed up inside a radical mosque in central Islamabad to lay down their weapons or face attack. After a deadline for 1100 local time passed, several hundred st
2007年VOA标准英语（七月）
By Anjana Pasricha New Delhi 13 July 2006 Police in India's financial capital, Bombay, have detained hundreds of people in connection with the blasts that hit the city's train network, but no one has been arrested or charged. The attacks have also p
2006年VOA标准英语（七月）
A: Good morning golf aficionados! My name is Rick Fields, and you guessed it, I am here with my main man, Bob Copeland. B: Thank you, Rick! As you can see, ladies and gentleman, we are here in beautiful Pebble Beach where the top golfers in the world
纯正地道美语
Olly Murs《Oh My Goodness》：欧卖糕！ Olly Murs原名是Oliver Stanley Murs，出生于英国的埃塞克斯，是一个唱作俱佳的歌手，而且有着极强的表演天赋。 在获得英国偶像之后，Murs 宣布自己自己已经签了
经典英文歌曲