单词：high power laser
单词：high power laser 相关文章
Ouch! About a quarter of all school-age kids will break or otherwise damage a tooth. Adults have their share of cracked chompers too. But what if fixing a busted bicuspid was as easy as zapping it with a laser? Preliminary work with young rats has mo
英伦广角
This is Valentines Day and this morning, we have a few words about love and money. According to research from a major credit card company, the average man spends about $130 on his sweetheart. Women, spend about half that. For people who want to spend
2006年NPR美国国家公共电台
Last month, Washington, D.C., opened a new kind of trade school of which it is immensely proud. This is not one of the old-fashioned vocational schools that taught literal nuts-and-bolts repair work or hands-on career training in fields like auto re
VOA标准英语2008年（九月）
The coastal city of Weihai in East China's Shandong Province has started building a nuclear plant to address a shortage of power in the region. Power production in Shandong has been largely based on coal-burning, which pollutes the environment but do
英闻天下
Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄，传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距
经济学人科技系列
And on, im alive, im alive, im alive And on, I can fly, I can fly, I can fly And on, im alive, im alive, im alive And im loving every second minute hour bigger better stronger power I got that power I got that power I got that power Power power power
The Voice 美国好声音