单词:vacuum ultraviolet ray
单词:vacuum ultraviolet ray 相关文章
In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du
She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She
HEALTH REPORT - Health: Looking for Skin CancerBy Brianna Blake Broadcast: Tue, 4 Jul 2006 16:00:00 UTC I'm Faith Lapidus with the VOA Special English Health Report. Tanning beds produce ultaviolet ra
21 俄勒冈青蛙数量急剧减少的调查分析 DATE=5-11-01 TITLE=ENVIRONMENT REPORT - Oregon Frog Study BYLINE=Cynthia Kirk (Start at 59
Mary Morningstar It's been 11 years since Billy Ray Cyrus earned worldwide attention with his breakthrough single, Achy Breaky Heart. Since 1992, the 41-year-old country singer has recorded six albums
Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it
His work brought together different kinds of music and different kinds of music fans. Transcript of radio broadcast: 21 June 2008 VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Doug Johnson with PEOPLE IN AMERICA in VOA Special English. To
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart
Studies are finding that the vitamin known for building strong bones may also help prevent many diseases. Transcript of radio broadcast: 15 July 2008 This is the VOA Special English Health Report. Vitamin D helps bones and muscles grow strong and he
A: My doctor said that I need a chest X-ray. B: Just take your clothes off from the waist up and put this gown on, with the opening in the back. A: What should I do after that? B: You need to come over here and face this plate. A: Am I standing the r
A: I came here to get a chest X-ray. B: I will need you to take your clothes off from the waist up and put on the gown, leaving the opening in the back. A: What comes next? B: I will need you to face this glass plate right over here. A: Should I do a
A: I was told to come to you to get a chest X-ray. B: No problem. Just take your clothes off from the waist up and put the gown on, with the opening in the back. A: Then what should I do? B: You will stand over here up against this plate. A: Should I
物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声,洪
主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握
is a consequence of ultraviolet light, of latitude and climate. 这只不过是紫外线 纬度和气候造成的。 There really is no such thing as race. 实际上并没有什么种族。 We're one species, each of us much much more alike than we a
HEALTH REPORT - Study: Sunshine and Vitamin D May Improve Lung Cancer Survival By Cynthia Kirk Broadcast: Wednesday, May 18, 2005 I'm Gwen Outen with the VOA Special English Health Report. Sunlight he
A new 'health' trend in Hong Kong sees women staring straight at the sun in the belief that it will replace their need for food and even improve their vision and sleep quality, reports Oriental Daily. 据《东方日报》报道,香港女性中兴起
A man who created neon noodles is being scrutinised as he's refusing to reveal what exactly has given them their crazy colours. 由于拒绝披露关于五彩面条的上色细节,霓虹色面条的发明者受到严厉审视。 The fluorescent foo