单词：piezoelectric ceramic gassparking plug
单词：piezoelectric ceramic gassparking plug 相关文章
This is Scientific Americans 60 Science, Im Cynthia Graber. Thisll just take a minute. Batteries add weight, and they need recharging. Thats serious business for implanted medical devices. When the batteries die, patients sometimes have to undergo an
Scientific American(九)月
M.I.T. researchers have developed a piezoelectric fiber that would react to electric currents and have the potential to record or produce audio. Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethi
60秒科学
Broadcast: May 5, 2003 By Jill Moss This is the VOA Special English Development Report. Each year more than two-million people die from diseases caused by drinking dirty water. That is the estimate of
VOA2003（上）-社会广角
今天我们要学的词是plug away at。 To plug away at something, 坚持不懈地去做一件事。 He continues to plug away at the novel even though no one is willing to publish it, 虽然没人愿意出版这本小说，可他还是坚持不懈地
英语每日一词
今天我们要学的词是pull the plug。 To pull the plug, 意思是停止，终止。The Washington Times pulled the plug on its sport section, 华盛顿时报决定停发体育版。The Washington Redskins pulled the plug on its head coach after
英语每日一词
我们今天要讲的习惯用语里有一个共同的词plug。也许很多人都知道plug是塞子或者插头，反正是塞住洞孔的东西。但是plug这个词在俗语中还有个挺特别的意思。那就是推荐、捧场或者广告宣传
美国习惯用语