单词:operation(al) speed
单词:operation(al) speed 相关文章
Education Report - A Social Network Aims to Speed Up Progress in Science This is the VOA Special English Education Report. A few years ago, a university researcher was having problems with an experiment that involved medical imaging. His adviser and
A faster way of travel but with higher cost, high-speed rail in China continues to undergoing doublt. The 2,298-kilometer line which links five regional economic centers including Beijing, Zhengzhou, Wuhan, Changsha and Guangzhou, largely shortens th
EXPLORATIONS - Will Physicists Have to Rewrite The Special Theory of Relativity? DOUG JOHNSON: Welcome to EXPLORATIONS, in VOA Special English. Im Doug Johnson. This week, we hear about developments in physics that, if proven correct, could have scie
Game of Jai Alai Struggles to Attract US Fans Jai Alai is not child's play. The ball weighs about 150 grams and flies at high speed around a playing court, called a fronton. That speed is dangerous and it is what powers the sport. Long time player Jo
A faster way of travel but with higher cost, high-speed rail in China continues to undergoing doublt. The 2,298-kilometer line which links five regional economic centers including Beijing, Zhengzhou, Wuhan, Changsha and Guangzhou, largely shortens th
The ceremony marking the beginning of the building process was held the city of Springfield. Earlier in 2015, Massachusetts Bay Transportation Authority awarded a 560 million dollar contract to China Rail Rolling Stock Corp. to design and manufacture