向辐射特性

Without the Sun we wouldnt be here. It is the source of our heat, light and energy. It is enormous, bigger than we could imagine; yet its very small compared to other suns in the universe. Its unbelievable to think how much the sun burns. Its just a

发表于:2018-12-04 / 阅读(189) / 评论(0) 分类 听一分钟英文-S

Doctors use X-rays to view internal organs, obtain clear images of possible disease and to treat cancer. For years radiation has been used to save lives, but there is growing concern that some patients are getting more than they ask for when they und

发表于:2018-12-08 / 阅读(167) / 评论(0) 分类 VOA标准英语2010年(一月)

This is the VOA Special English Health Report. Doctors currently identify autism disorders by observing behavior. Autism affects social and communication skills. It usually first appears in young children. Now, researchers in the United States think

发表于:2018-12-15 / 阅读(211) / 评论(0) 分类 2010年VOA慢速英语(十二)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Animals rely on all sorts of cues to find their next meal. Monkeys and birds are attracted to the colors of ripe fruits and berries. And snakes find thei

发表于:2018-12-24 / 阅读(169) / 评论(0) 分类 Scientific American(十)月

Amanandhissonwereridinginthecar. Themansaidtohisson,Couldyoucheckandseeifthedirectionlightsareworkingonyoursideofthecar? Hissonlookedoutthewindowandsaid,Yes,no,yes,no,yes,no,yes,no... Notes: 1.Amanandhissonwereridinginthecar. 有一个男人和他儿子

发表于:2018-12-26 / 阅读(167) / 评论(0) 分类 英语笑话(MP3+文本)

Human exploration of Mars is now an official goal of the National Aeronautics and Space Administration (NASA). Last month, U.S. President Donald Trump signed a bill to increase NASAs budget. The law sets spending at $19.5 billion for the 12-month per

发表于:2019-01-02 / 阅读(143) / 评论(0) 分类 2017年VOA慢速英语(四)月

中文 英文 缩写 顶侧板 top-side door 顶盖 top cover 顶面板 top panel 定长方式 fixed-length mode 定长码 fixed-length code 定界符 delimiter 定力矩扳手 torque wrench 定时 ti

发表于:2019-01-03 / 阅读(160) / 评论(0) 分类 电信英语

alaysian plans to build a subway in Kuala Lumpur, have sparked protests and allegations of land-grabbing. Chuah Chee Peng, 56, has been living in Petaling Street, Kuala Lumpur city's historical Chinatown, for more than 40 years. I grew up watching th

发表于:2019-01-07 / 阅读(163) / 评论(0) 分类 英语新闻

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(277) / 评论(0) 分类 Scientific American(十)月

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

发表于:2019-01-11 / 阅读(182) / 评论(0) 分类 英语新闻

DOUG JOHNSON: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Doug Johnson. FAITH LAPIDUS: And I'm Faith Lapidus. Today, we will tell about skin cancer. (MUSIC) DOUG JOHNSON: Skin cancer is one of the most common forms of cancer. It is also

发表于:2019-01-11 / 阅读(271) / 评论(0) 分类 2010年VOA慢速英语(七)月

Pakistani troops have killed at least 84 Taliban fighters and lost five of soldiers in two days of clashes in a northwestern tribal region believed to be a militant stronghold. Top military officials in Pakistan say that clashes in the Orakzai tribal

发表于:2019-01-13 / 阅读(166) / 评论(0) 分类 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

发表于:2019-02-06 / 阅读(314) / 评论(0) 分类 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

发表于:2019-02-06 / 阅读(178) / 评论(0) 分类 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

发表于:2019-02-07 / 阅读(157) / 评论(0) 分类 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

发表于:2019-02-07 / 阅读(141) / 评论(0) 分类 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

发表于:2019-02-11 / 阅读(178) / 评论(0) 分类 英语新闻

7月28日,胡润研究院发布2015富豪消费价格指数,报告显示,富豪消费价格总水平比去年下降1.8%,这是九年来首次出现负增长。 请看《中国日报》报道: The Hurun Luxury Consumer Price Index, an annual

发表于:2019-02-18 / 阅读(160) / 评论(0) 分类 英文语法词汇

DALIAN, July 13 (Xinhua) -- Foreign realtors have gathered in Dalian,northeast China's Liaoning Province, to attend a summer housing sales fair, looking to potential Chinese buyers for overseas properties. The sales fair, which will last from Thursda

发表于:2019-02-19 / 阅读(143) / 评论(0) 分类 英语新闻

The Labour Party said today that if elected in November, they would bring in a Capital Gains Tax CGT on profits from selling property. For many years now, house prices have been increasing fast. If a landlord buys a house for $200,000 then sells it f

发表于:2019-02-25 / 阅读(169) / 评论(0) 分类 新西兰英语
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