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自制笔芯铁钩发射器
更新时间: 2020-10-04 00:00:00  

自制笔芯结构发射器做法如下:

准备好制作工具的工具有:圆规一个,橡皮筋两根,笔芯若干;再把橡皮筋打个结系在圆规的两端;然后把圆规的夹角拉到最大,此时就能作为一个简易的弓;最后把笔芯搭在上面就可以完成了,操作过程中注意安全。

关键词: 自制 笔芯 发射

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