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jian kang kuai zi
Author(s): 
Pages: 39-40
Year: Issue:  Z1
Journal: Science Initiation

Keyword:  筷子 健康 指示灯 过期 食物 发明 智能 有毒 含义 代表;
Abstract: <正>我想发明一种智能筷子。它有三个指示灯,每一个灯都代表不同的含义。这三个小灯的用处可大了!当它碰到有毒或者过期的
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