单词：permanent-magnet field generator
单词：permanent-magnet field generator 相关文章
Scrap-Metal Separation May Become Cheaper 新技术降低废金属分离成本 According to the Environmental Protection Agency, the United States throws 14.8 million tons of scrap metal into landfills every year. One of the main reasons is the diffi
VOA标准英语2015年(二月)
AS IT IS 2015-03-25 Scrap Metal Separation May Become Less Costly 废金属分离技术成本可能会降低 Recycling, or re-using, metals is much less costly than making them from raw materials in the Earth, called ore. But when old cars, household
2015年VOA慢速英语(三)月
Radiation causes damage at the most fundamental level. It mutates the blueprint of life, DNA. Earth's magnetosphere is our crucial defense. It's so fundamental to our evolution and continued existence that the race is on to understand why it's changi
自然百科2011年
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
自然百科2011年
查看译文 tips: 怎样阅读才是有质量的阅读了？ 中英对照请点击【中英对照】查看译文请点击 【查看译文】进行核对。 The Biggest Magnet 最大的磁体 A: Whats the biggest magnet ever? B: Well, that's a great
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