搜索 - 科创

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专*业国*际IELTS分*数*修*改,IELTS代*考*，TOEFL代*考*,TOEIC成*绩*修*改,SAT代*考,GRE,AP，GMAT等成*绩*修*改及代*考*，代*办真*实国*际*文*凭！联...

引用 RodTech:接触过几次那类机子。。但是没机会拆有个making a miniature X ray tube的视频做的就是cm级别直径的微型cathode的管子估计那个效果不错我手头有...

之前做过一些电子小制作,自我感觉焊功不错[s:1]但问一问电路板上的78XX芯片可不可以像图上那样分布?我忘买散热片就并联了3个7815,接着还有7809,7805,分别给NE555,LM311,UC...

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