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1 Mixer characterization DC input Bias voltage Bias Current RF input Lo input IF output 2 mixer device Schottky diode: BJT or FET :参考集成IC的datasheet 3 阅读全文
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at someone's disposal任某人处理,供某人使用to some extent在某种程度上at the latest至迟, 最迟have to必须, 不得不either or adj. 按位加的(二者择一的)hear from v. 接到...的信, 受...批评drop in on 阅读全文
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Several cryptocurrency exchanges are plagued by poor market surveillance, pervasive conflicts of interest and lack sufficient customer protections, th 阅读全文