金属氧化物磁心

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

发表于:2018-12-16 / 阅读(22) / 评论(0) 分类 VOA标准英语2015年(二月)

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 kiss [ kis ] A soft wind kissed the tr

发表于:2018-12-30 / 阅读(66) / 评论(0) 分类 每日攻克5词

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

发表于:2019-01-12 / 阅读(30) / 评论(0) 分类 2015年VOA慢速英语(三)月

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(46) / 评论(0) 分类 自然百科2011年

今天我们要学的词是magnet。 Magnet, 吸铁石,引伸为有吸引力的人或物。英国石油公司同意设立一个200亿美元的基金,赔偿石油泄露事件的受害者。有专家警告说, The $20 billion relief fund will be

发表于:2019-02-03 / 阅读(66) / 评论(0) 分类 英语每日一词

The Cleaning Power of Soft Drinks! 饮料的神奇清洁能力 Lets begin with a cleaning tip: If you have some tarnished or corroded brass that you want to clean, an old brass candlestick for example, you can use Coca-Cola, or any other cola soft dr

发表于:2019-02-24 / 阅读(41) / 评论(0) 分类 英语听力文摘 English Digest