磁性铁粉心,压粉磁心,铁粉心;磁粉心

SSS 2008-08-26

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(127) / 评论(0)

Scientific American(八)月

2015-01-30 BBC:星光七纪元-5

Many regions within these clouds can stay like that for ever for millions of years until something happens, a trigger and then a star forms.The trigger for such a monumental event doesn't have to be much, two clouds conbine as they pass, or a distant

发表于:2018-12-27 / 阅读(92) / 评论(0)

探索与发现2015年

第74期: kneel, lap, magnetic, nasty, zero

说一口流利的英语，从简单的单词开始。听听，读读，背背，今天你的词汇量又增加了5个。单词/词义中英例句单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(156) / 评论(0)

每日攻克5词

风中尘埃dust in the wind - kansas

I close my eyes only foe a moment and the moment's gone all my dream pass before my eyes curiosity dust in the wind all we are is dust in the wind same old songs just drop of water in an endless sea all we do crumbles to the ground though we refuse

发表于:2019-01-03 / 阅读(221) / 评论(0)

珍藏经典老歌

SSS 2008-06-04

This is Scientific American's 60-Second Science, I am Cynthia Graber.This'll just take a minute. On earth, snow crystals as we all know, form from frozen water. But scientists believe there're also flakes that fall on Mercury, and they're made of iro

发表于:2019-01-07 / 阅读(115) / 评论(0)

Scientific American(六)月

经典歌曲-风中尘埃dust in the wind - kansas

经典歌曲-风中尘埃dust in the wind - kansas I close my eyes only foe a moment and the moment's gone all my dream pass before my eyes curiosity dust in the wind all we are is dust in the wind same old songs just drop of water in an endless sea

发表于:2019-01-10 / 阅读(105) / 评论(0)

经典英文歌曲

音乐咖啡厅:Dust In The Wind风中尘埃-Sarah Brightman

空灵的声音，听之仿佛见到月光女神；生灵的氛围，闭眼感到重返伊甸园，莎拉布莱曼就给你这样的感觉，这样的体验！ Artist: Sarah Brightman Song: Dust In The Wind I close my eyes, Only for a moment, And the moment's gone All my dreams, pass before my eyes a

发表于:2019-01-10 / 阅读(173) / 评论(0)

音乐咖啡厅

科学家们努力了解地球磁场

Scientists Work to Understand Earth's Magnetic Field 科学家们努力了解地球磁场 Most of us rarely think about the earth's magnetic field. We might know that it helps guide birds as they travel and keeps our compasses pointing north. But, th

发表于:2019-01-12 / 阅读(96) / 评论(0)

2015年VOA慢速英语(八)月

Strengthen Your Core With 5 Simple Exercises

Strengthen Your Core With 5 Simple Exercises From VOA Learning English, this is the Health and Lifestyle report. Your core is a complex network of muscles. It includes your abdominal muscles, back muscles and the muscles around you pelvis. Basically,

发表于:2019-01-12 / 阅读(137) / 评论(0)

2016年VOA慢速英语(七)月

VOA标准英语2013--Magnetic Ring Used to Stop Acid Reflux

Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin

发表于:2019-01-14 / 阅读(138) / 评论(0)

VOA标准英语2013年(四月)

英语听力：自然百科地球力场 Earth's Force Field—7

The loss of the magnetic field has a catastrophic impact on the planet's evolution. Mars becomes the red planet we see today. If earths magnetic protection continues to fade, would it suffer the same fate? If it vanishes completely, the planet might

发表于:2019-01-22 / 阅读(101) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—8

Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen

发表于:2019-01-22 / 阅读(88) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—9

As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag

发表于:2019-01-22 / 阅读(93) / 评论(0)

自然百科2011年

英语听力：自然百科地球力场 Earth's Force Field—10

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(95) / 评论(0)

自然百科2011年

每日一词【417】hard-core：坚定的，铁杆的

今天我们要学的词是hard-core。 Hard-core, 是指坚定的，铁杆的。Hard-core gamers, 是指打电玩上瘾的人。Hard-core members of the party, 是指一个政党的中坚力量。All my friends are hard-core Redskin fans, 我的朋友

发表于:2019-02-05 / 阅读(113) / 评论(0)

英语每日一词

CCTV9英语新闻：China's first permanent magnetic monorail train successfully completes test run

China's first permanent magnetic monorail train has successfully completed a test run in the city of Qingdao, in Shandong Province. The high-tech urban transportation system features strong climbing capacity, a small turning radius, energy efficiency

发表于:2019-02-05 / 阅读(120) / 评论(0)

cctv9英语新闻2016年

Magnetic Bubbles Detected at Edge of Solar System

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(120) / 评论(0)

英语新闻

学个词Learn a Word 第417期 Hard-core

发表于:2019-02-08 / 阅读(140) / 评论(0)

英语单词荟萃

英语歌曲：周五晚上Pub见：Magnetic Man - I Need Air

周五晚上Pub见：Magnetic Man - I Need Air Magnetic Man，来自英国的新人，这首电子风的新单曲本周同样杀入英国单曲榜前十一周上榜那么多舞曲，生活需不需要这么五彩缤纷啊这张单曲封面要不要这么

发表于:2019-02-11 / 阅读(114) / 评论(0)

经典英文歌曲

英语歌曲:周五晚上Pub见Magnetic Man - I Need Air

发表于:2019-02-14 / 阅读(140) / 评论(0)

流行英文歌曲

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brake block adjusting gear

building core

bummaree

cabinet piano

calorimetric gas meter

centre combustion stove