薄膜电容器由于具备很多优良的特性，无极性，绝缘电阻很高，频率特性出色（频率响应宽阔），而且介质损失较小。...
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Bencao Gangmu《本草纲目》Bencao Gangmu , also known as The Compen,dium of Materia Medica (a book on Chines...
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China’s spy agency has ordered local hackers to abstain from global hacking contests and instead rep...
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Japans space agency (JAXA) has made history by successfully landing two robotic explorers on the sur...
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China is working on next-generation bullet trains with a maximum operational speed of 400 km per hou...
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据外媒报导，土耳其第一大移动运营商Turkcell和华为日前宣告，双方合作展开的首个5G毫米波速率测试超越了记录。...
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