紫外线灭菌；紫外线杀菌, 紫外线灭菌，紫外线杀菌

SSS 2009-12-22

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

发表于:2018-12-02 / 阅读(57) / 评论(0)

Scientific American(十二)月

VOA慢速英语20060705a

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

发表于:2018-12-07 / 阅读(63) / 评论(0)

2006年慢速英语（七）月

原版英语对话：Taking an X-ray(2)

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

发表于:2019-01-15 / 阅读(80) / 评论(0)

英语情景对话-健康

美国国家公共电台 NPR On A 'Eugenics Registry,' A Record Of California's Thousands Of Sterilizations

AILSA CHANG, HOST: There's a grim chapter in American history that involves forced sterilization. And for much of the last century, California had one of the most active sterilization programs in the country. A state law from 1909 authorized the surg

发表于:2019-01-16 / 阅读(35) / 评论(0)

2016年NPR美国国家公共电台12月

X-ray

A young girl was told she needed an X-ray. She went in and seemed especially nervous. When she came out of the X-ray room, she told her mother, They took a picture of my bones.Yes, dear, replied the mother. Did everything go all right?Sure, said the

发表于:2019-02-07 / 阅读(83) / 评论(0)

趣味英语

香港兴起怪异“食日”减肥法

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

发表于:2019-02-15 / 阅读(106) / 评论(0)

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学英语单词

accommodating lens implant

afferent branchial artery