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硬核拆解：教学式拆解博世电钻机械部分
为了达成粉丝的心愿，今天拆了个博世的电钻，虽然拆的不是我日常使用的这个博世电钻，但是也是正宗的博世电钻，看看博世在机械设计上的巧妙设计。还有什么比齿轮更令机械男着迷的东西吗？
拆开后学知识91/309
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