牵手跑胡子老版官网

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带灯伞

[字体: ] [ 中学生科技网 | 时间:2012-05-09 14:16 ]

牵手跑胡子老版官网   YI、ZHIZUOFANGFA:BAYIGESULIAOBUSANDEBINGXIADUANJIESHANGYIGEXIAODIANDENGTONG,DIANTONGSHANGRENGYOUKAIGUAN,DIANCHISHIYIDUISANHAOXIAODIANCHI。

  二、小发明牵手跑胡子老版官网的构思:运用组合的原理。

牵手跑胡子老版官网   SAN、YONGTU:YEWANXIAYUXINGLUSHI,DAKAICISAN,JIKEYIZHEYU,YOUKEZHAOMINGDIMIAN,ZHIYAOYIZHISHOUCAOZUOJIUXING,BIMIANLEYONGLIANGZHISHOU(YISHOUNASAN,LINGYISHOUDADIANTONG)DEMAFAN。CISAN,TEBIESHIHEGUANGDANONGCUNZHONGQUNZHONGSHIYONG。YINNONGCUNDELUMIANSHANG,YEWANDADOUMEIYOULUDENG,XIEDAICIDENGSHIFENFANGBIAN。

 

提示:也可以在雨伞上设计一个卡座,要使用时把手电筒安装在卡座上。

 

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