铸造用耐火材料

[单词解析速记].JV561.(Refractory.and.Voluminous)

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发表于:2018-12-30 / 阅读(147) / 评论(0)

单词解析速记

有声英文阅读-性命“忧”关

Down with Depressio 1. Everyone has a bad day once in a while. Problems at work, arguments with family members, or even changes in the weather can all bring us down and leave us feeling unhappy for a

发表于:2018-12-31 / 阅读(153) / 评论(0)

有声英文阅读

双语有声阅读:Down with Depressio 性命"忧" 关

Down with Depressio 性命忧关 1. Everyone has a bad day once in a while. Problems at work, arguments with family members, or even changes in the weather can all bring us down and leave us feeling unhappy for a day or two. But if this mood lasts f

发表于:2019-01-02 / 阅读(169) / 评论(0)

双语有声阅读

VOA标准英语2011--Cast Iron Revival Keeps US Foundry Cooki

Cast Iron Revival Keeps US Foundry Cooking Tucked between the Tennessee River and the hills of Marion County lies the small town of South Pittsburg, Tennessee. Home to just 3,200 people, it has one claim to fame: a metal foundry called Lodge Cast Iro

发表于:2019-01-13 / 阅读(190) / 评论(0)

VOA标准英语2011年(七月)

2018年CRI 3D printing of casting pattern leads the industrial transformation in Ningxia

There are more than 26 thousands casting companies in China, accounting for half of all the global manufacturers of casting products. But the traditional method of handmaking castings is heavily reliant on human resources and energy, and can produce

发表于:2019-01-19 / 阅读(193) / 评论(0)

2018CRI中国国际广播电台

经济学人241:台积电一家晶圆厂的成功之道

Business 商业报道 TSMC 台积电 A fab success 一家晶圆厂的成功之道 The smartphone boom has been a boon for a pioneer in semiconductors 智能手机的大爆发让这个半导体行业的先锋获益不少 WHEN he founded Taiwan Semicon

发表于:2019-02-18 / 阅读(113) / 评论(0)

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chemical clarification

clayprice

columnar cells