有理磁面

VOA慢速英语2014 Hoverboards Ignore Gravity

Hoverboards Ignore Gravity Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part

发表于:2018-12-16 / 阅读(51) / 评论(0)

2014年VOA慢速英语(十二)月

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(84) / 评论(0)

每日攻克5词

SCIENCE IN THE NEWS - Mars Once Had Moving Plates Like Earth

SCIENCE IN THE NEWS - Mars Once Had Moving Plates Like Earth Has Now By Katherine Gypson, Cynthia Kirk and Karen Leggett Broadcast: Tuesday, November 08, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE

发表于:2019-01-02 / 阅读(42) / 评论(0)

科技之光

VOA标准英语2014--New Skateboard Defies Gravity

New Skateboard Defies Gravity WASHINGTON A futuristic dream only a couple of decades ago, the hoverboard a skateboard that floats above the ground - has finally been made possible. While still not ready for mass production, it promises to become a co

发表于:2019-01-14 / 阅读(37) / 评论(0)

VOA标准英语2014年(十一月)

英语听力：自然百科地球力场 Earth's Force Field—5

If we could flip a switch and just turn off the Earth's magnetic field, it will take about 15,000 years to disappear, based on the rate of decay of the field that we've seen over the last 150 years. It's currently decaying at a rate that would see an

发表于:2019-01-22 / 阅读(46) / 评论(0)

自然百科2011年

英语听力：自然百科行星旅行指南：木星 Jupiter—13

Gas escaping into space from the plumes is energized by Jupiters magnetosphere, creating an intense band of ionizing radiation that bombards a surface already soaked in emissions. If you went out relatively unprotected with, like a normal spacesuit f

发表于:2019-01-22 / 阅读(41) / 评论(0)

自然百科2012年

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学英语单词

-nil-

252

AC equivalent inductance

activity coefficient

area under reclaimation

bottom gradient electrode system