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上海教育电视台:水果无人称重 起重机防摇器 一大波“新科技”亮相电子设计大赛

时间:2019-07-19浏览:0编辑:董真摄影:    通讯员:设置



来源:上海教育电视台 记者:孙遥

原文链接:http://wx.setv.sh.cn/v/vod/C37889977.htm

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