单词：optical levitation
单词：optical levitation 相关文章
This is the VOA Special English Economics Report. Copies of the budget plan at the Government Printing Office in Washington President Barack Obama on Thursday proposed his first budget to Congress. He wants to let the Bush administration's tax cuts
VOA慢速英语2009年（二）月
Hoverboards Ignore Gravity Can you imagine riding around the streets of your hometown on a skateboard without wheels? In the late 1980s, film director Robert Zemeckis showed a skateboard floating above the ground in his movie Back To The Future Part
2014年VOA慢速英语(十二)月
China Restarts Fastest Bullet Trains China will again lay claim to operating the fastest bullet train service in the world. According to Chinese media, the Beijing to Shanghai train will once again be allowed to reach speeds up to 350 kilometers an h
2017年VOA慢速英语(九)月
Japan's New Train Will Be Invisible 日本发明透明火车 Japan is famous for its state-of-the-art high-speed railway system. In 2015, its Magnetic Levitation or Maglev train, which gets its name because it hovers 10 cm above the tracks, set a new
英语新闻
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin
Scientific American(十一)月
So-called levitation photography is a growing trend in Indonesia. Heavily promoted through social media, the challenge is to snap pictures that make their subjects seem to defy gravity but theres no real trickery involved, just an energetic model and
英语新闻视频
BEIJING, Feb. 28 (Xinhua) -- Construction began on China's first low-speed maglev(磁力悬浮火车) line Monday in Beijing, a project that will make China only the second country with a low-speed maglev line after Japan. The project marked China's
英语新闻
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
2018CRI中国国际广播电台
Harnessing Brain Power 美国科学家发表研究报告说，他们已训练两只脑中装了电极的猕猴，光靠意念即可操作仿生机械手臂拿取食物，甚至能调整送进嘴巴食物的大小与黏稠程度。科学家希望两年内
英语听力文摘 English Digest