标签：magnetism 相关文章

用Mp3背六级单词035

participant complexity puff shipment denounce exempt receiver slumber flare bizarre auction flatter panel sieve availability metallurgy paragraph spokesman fraud sneeze bead magnetism coincide promising tone flux

发表于:2018-12-01 / 阅读(150) / 评论(0) 分类 用Mp3背六级单词

英文书摘精选 伟人传记01：一开始就与众不同

Different from the Start 一开始就与众不同 Five-year-old Albert Einstein stared at his hand as if it held magic. Cupped in his palm was a small，round instrument with a glass cover and a jiggling needle. Albert's father called it a compass. A

发表于:2018-12-18 / 阅读(50) / 评论(0) 分类 初学者听力文摘精选

VOA常速英语2008年-Followers Recall 1979 Papal Visit to Washington

By George Dwyer Washington 09 April 2008 Next week (15-20 April 2008), Pope Benedict XVI makes his first official visit to the United States. He is scheduled to meet with President Bush at the White House, deliver an address at the United Nations, an

发表于:2019-01-19 / 阅读(58) / 评论(0) 分类 VOA常速英语2008年（四月）

[科学美国人60秒] SSS 2015-10-13

If you are lost, you need a map and a compass. The map pinpoints where you are and the compass orients you in the right direction. Migratory birds, on the other hand, can traverseentire hemispheres and end up just a couple of miles from where they br

发表于:2019-01-20 / 阅读(98) / 评论(0) 分类 2015年Scientific American(十)月

英语听力：自然百科 地球力场 Earth's Force Field—6

It's clear from the fact that the Martian crust is strongly magnetized, that there must have been a magnetic field on Mars in the past, that the only way we know to magnetize rocks is for them to form in the presence of magnetic field. Why did Mars l

发表于:2019-01-22 / 阅读(59) / 评论(0) 分类 自然百科2011年

英语听力文摘 English Digest 474、海洋独特的磁场

Motional Induction Last time, we talked about motional induction , a phenomenon by which the ocean generate s a magnetic field. It works like this: earth has its own magnetic field. The ocean has plenty of charged atoms in it, in the form of dissolve

发表于:2019-01-26 / 阅读(55) / 评论(0) 分类 英语听力文摘 English Digest

英语听力文摘 English Digest 257、录像机工作原理

How Your VCR holds a Note VCR-盒式磁带录像机VCR是Video Cassette Recorder的缩写盒式磁带录像机。就功能上而言，它是使用空白录像带并加载录像机进行影像的录制及存储的监控系统设备。VCR作为许多晚会

发表于:2019-03-09 / 阅读(146) / 评论(0) 分类 英语听力文摘 English Digest
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