单词：rubidium-controlled oscillator
单词：rubidium-controlled oscillator 相关文章
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英文名句短语
Keeping Time With Quartz Most people know that wrist watches commonly contain quartz. In fact, if you wear a watch, chances are its a quartz watch, since most watches is made today use quartz. But, you may not know what quartz has to do with keeping
英语听力文摘 English Digest
Mind-Controlled Prosthetics Are Getting Closer Scientists and engineers are making substantial advances towards the ultimate goal in prosthetics creation of limbs that can be controlled by the wearers mind. Thanks to sophisticated sensors capable of
VOA标准英语2015年(五月)
SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i
科技之光
AS IT IS 2016-03-11 Aung San Suu Kyi 'Apologizes' to Supporters昂山素季为未能成为下届总统而道歉 The longtime opposition leader of Myanmar, Aung San Suu Kyi, has apologized for not becoming the countrys next president. She posted a let
2016年VOA慢速英语(三)月
China has launched two satellites into space on a Long March carrier rocket from the Xichang Satellite Launch Center in Sichuan Province. The satellites are part of the country's growing BeiDou Navigation Satellite System. The launch of the Long Marc
2018CRI中国国际广播电台