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。...
Bencao Gangmu《本草纲目》Bencao Gangmu , also known as The Compen,dium of Materia Medica (a book on Chines...
China’s spy agency has ordered local hackers to abstain from global hacking contests and instead rep...
Japans space agency (JAXA) has made history by successfully landing two robotic explorers on the sur...
China is working on next-generation bullet trains with a maximum operational speed of 400 km per hou...
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。...