旋转检测器

2018年CRI Bridge over railway completes rotation construction in Guangdong

The rotation construction of two sections of a giant super-tonnage bridge on the Shantou-Kunshan highway in China's Guangdong Province has been completed on Friday morning. The two sections of the bridge also span across the Beijing-Guangzhou high-sp

发表于:2018-12-24 / 阅读(67) / 评论(0)

2018CRI中国国际广播电台

国家地理-2008-07-12 Lie Detector 测谎仪的奥秘

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'

发表于:2018-12-30 / 阅读(128) / 评论(0)

国家地理2008年

Earth and Sky:Galactic Rotation 银河系自转

Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel

发表于:2019-01-02 / 阅读(129) / 评论(0)

(科普英语)Earth and Sky

VOA标准英语2010年-Farmers Say Climate Change Already Aff

Scientists around the world predict that climate change will have dramatic effects on agriculture in the coming decades. So, too, will pests and pesticides, the loss of species and the need to increase food production for a growing population. Resear

发表于:2019-01-14 / 阅读(47) / 评论(0)

VOA标准英语2010年(十)月

美国国家公共电台 NPR Heavy Rotation: The Songs Public Radio Can't Stop Playing

SCOTT SIMON, HOST: Time for our monthly check in with music masters who are not BJ Leiderman - who writes our theme music - public radio DJs with what they play in Heavy Rotation. NICK BRUNNER, BYLINE: My name is Nick Brunner. I am the host of Hey Li

发表于:2019-01-16 / 阅读(55) / 评论(0)

2017年NPR美国国家公共电台7月

美国国家公共电台 NPR Heavy Rotation: The 10 Songs Public Radio Can't Stop Playing

MELISSA BLOCK, HOST: Time to take the temperature of music on public radio stations across the country this month. Well, it's hot. Here's what the music mavens have put into Heavy Rotation. JESSE MENENDEZ, BYLINE: My name is Jesse Menendez. I'm a hos

发表于:2019-01-17 / 阅读(67) / 评论(0)

2017年NPR美国国家公共电台6月

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学英语单词

5-Hydroxy-L-tryptophane

annual physical count

anthraquinone pigments

bamboozling

benzaldehyde cyanohydrin