单词：fire-proof material technology
单词：fire-proof material technology 相关文章
Does Using Technology in the Classroom Help College Students? Almost anywhere in the world, you are likely to find people doing the same thing at eateries and in other public places, on trains and buses or wherever else you look. More and more people
2018年VOA慢速英语(十)月
AGRICULTURE REPORT - West African Leaders Discuss Genetically Engineered Crops By Mario Ritter Broadcast: Tuesday, June 29, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Fo
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VOA's Weekly Science and Technology Magazine Art Chimes 05 January 2010 MUSIC: Our World theme This week on a special edition of Our World, some of our favorite stories of the past year ... including a high-tech wrinkle to that humblest of building m
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A new self-repairing material has been developed by researchers in the UK and they say itll be ready to integrate into everything from smartphone screens to nail varnish within the next five years. 英国研究员已开发一种能自我修复的新型
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Over 40 billion ballpoint pens are made in China every year. Yet, the key materials and equipment are, for the most part, imported. Thus, most Chinese stationery companies are lingering at the low end of the industrial chain. Ding Zhangrong, presiden
2016CRI中国国际广播电台