单词:gravicembalo
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Unit 5 [00:03.21]Go with Transportation! [00:07.16]Trains Go on Rails! [00:11.00]Who invented the steam engine? [00:15.05]In the 1700s,many inventors were working on the steam engine. [00:22.31]In the 1760s, [00:26.15]a scientist in England invented
Improving Industrial efficiency through Robotics Robots, becoming increasingly prevalent in factories and industrial plants throughout the developed world, are programmed and engineered to perform ind
Robots, becoming increasingly prevalent in factories and industrial plants throughout the developed world, are programmed and engineered to perform industrial tasks without human intervention. Most of today's robots are employed in the automotive ind
The future life Sometimes I dream about life in the future. What will it be like? Perhaps some people will go to the movie for a holiday and some scientist will live onto the sea. Maybe we will have vision phones in every home. We can have the medica
Football fever will continue in Brazil next month when robotic teams from around the world will gather there seeking to win their own championship. In preparation, U.S. technology students at the University of Pennsylvania are coaching a team of robo
QINGDAO, Shandong, Dec. 26 (Xinhua) -- China's largest rail vehicle maker, CSR Corp. Ltd, over the weekend launched its first test train that features speeds reaching up to 500 km per hour. The six-car train with a fairshaped head is the newest in th