单词:earthed-cathode triode
阴极接地三极管
        
        
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a
              发表于:2019-01-08 / 阅读(237) / 评论(0) 
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