单词：ultraviolet radiation detector
单词：ultraviolet radiation detector 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
Scientific American(十二)月
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
2006年慢速英语（七）月
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
自然探索
AS IT IS 2014-08-02 Americans Test Seawater for Fukushima Radiation 美国欲测试福岛辐射值 It has been more than three years since the nuclear accident at the Fukushima power station in Japan. Millions of liters of radioactive cooling water f
2014年VOA慢速英语(八)月
It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'
国家地理2008年
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
(科普英语)Earth and Sky
But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch
火星生命
U.S. health experts monitoring Japan's nuclear crisis are seeking to explain health risks from radiation（放射） exposure, while cautioning that radiation levels measured this week at the Fukushima-Daiichi power plant in northern Japan have not y
英语新闻
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
VOA慢速英语2008年（七）月
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
托福英语
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
NPR边听边练
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
健康与经济
Compared to the dose level of a medical chest x-ray, a backscatter scan is thousands of times lower. Since the Christmas Day attempted bombing of a U.S. airliner, airports are looking for ways to tighten security. One method being adopted by some and
VOA标准英语2010年(三月)
The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi
英语新闻
A key Japanese adviser on radiation（放射 ） leaks at the country's disabled Fukushima nuclear power facility has quit in protest over the government's handling of the disaster. The adviser, Toshiso Kosako, a radiation safety expert at the Univer
英语新闻
NEW DELHI, March 16 (Xinhua) -- The Indian government has ordered food originating from（发源于） Japan to be tested for radiation in the wake of explosions at a Japanese nuclear plant following a devastating earthquake-tsunami last Friday, repo
英语新闻
Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But
VOA标准英语2010年(一月)
WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine（碘） has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai
英语新闻
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
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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
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