搜索 - 科创

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有没有人在发射火箭的时候在火箭顶部装一个针孔摄像头，镜头朝下，就像NASA火箭发射时那样，用来记录发射升空时的情景？

NE555低压光控灯~~标准555施密特触发器光明电阻配合15K电阻通过555推主板MOSE管那个管不错 5A电流微热~光源为USA的雨灯灯泡~~ <。)#)))≦

库存8片，附送15针免焊接头。价200包邮顺丰，有意者私聊或闲鱼上搜索jibarium用户名，我会在那边同步上架，可以议价。

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