Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

发表于:2018-11-29 / 阅读(108) / 评论(0) 分类 VOA标准英语2015年(十二月)

VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Bob Doughty. And I'm Barbara Klein. Today on our program, we visit the Bureau of Engraving and Printing in Washington, D.C. to learn about how American dollars are made. Last year, th

发表于:2018-12-07 / 阅读(64) / 评论(0) 分类 VOA慢速英语2008年(九)月

VOICE ONE: Im Steve Ember. VOICE TWO: ''Revolt on the Amistad,'' silkscreen print by Jacob Lawrence And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in Washington, D.C., you can see a colorful and expres

发表于:2019-01-11 / 阅读(57) / 评论(0) 分类 VOA慢速英语2009年(九)月

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(78) / 评论(0) 分类 2018CRI中国国际广播电台

VOICE ONE: I'm Steve Ember. VOICE TWO: ''Revolt on the Amistad,'' silkscreen print by Jacob Lawrence And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in W

发表于:2019-01-30 / 阅读(101) / 评论(0) 分类 2006年慢速英语(十二)月

An employee carefully scans a man standing still behind two photographic lamps with a gun-like scanner in his hand. The whole process takes approximately 10 minutes. After loading the data into the computer, the rest work is left to the 3-D printing

发表于:2019-02-14 / 阅读(54) / 评论(0) 分类 英闻天下