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少年们的发明 令人脑洞大开
2017-08-18 05:42:24 中国青年网
8月17日，第32届全国青少年科技创新大赛迎来公众开放日。走进杭州白马湖国际会展中心，一系列科技发明让参观者“脑洞大开”。来自全国各地的近500名青少年、200多名科技辅导员以及来自20多个国家的青少年代表参加此次大赛。大赛将持续至8月19日。
图为杭州文苑小学黄海容同学展示他发明的教室门防夹手装置，结构简单，安装方便，易于推广使用。
本报记者
董旭明 摄
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