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      <description><![CDATA[提示词不是猜谜游戏，而是一套可学习的工程实践。本文给出三层结构（角色/任务/约束）模板，并拆解 5 个常见误区的根因。]]></description>
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      <description><![CDATA[匹配决定了模拟电路的精度。本文从失配源出发，讲解共心对称、交叉耦合、虚拟器件三大工程实践，并给出电流镜匹配的可复用版图模板。]]></description>
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