夏天到了,小明家安上了一个纱门,这样既通风又防蚊虫飞进教室内,可这又给人进进小明利用物理知识,给纱门安上了一根弹簧,当人推门出去后,门就会自动关上,这是为什么
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 08:07:13
![夏天到了,小明家安上了一个纱门,这样既通风又防蚊虫飞进教室内,可这又给人进进小明利用物理知识,给纱门安上了一根弹簧,当人推门出去后,门就会自动关上,这是为什么](/uploads/image/z/13930887-39-7.jpg?t=%E5%A4%8F%E5%A4%A9%E5%88%B0%E4%BA%86%2C%E5%B0%8F%E6%98%8E%E5%AE%B6%E5%AE%89%E4%B8%8A%E4%BA%86%E4%B8%80%E4%B8%AA%E7%BA%B1%E9%97%A8%2C%E8%BF%99%E6%A0%B7%E6%97%A2%E9%80%9A%E9%A3%8E%E5%8F%88%E9%98%B2%E8%9A%8A%E8%99%AB%E9%A3%9E%E8%BF%9B%E6%95%99%E5%AE%A4%E5%86%85%2C%E5%8F%AF%E8%BF%99%E5%8F%88%E7%BB%99%E4%BA%BA%E8%BF%9B%E8%BF%9B%E5%B0%8F%E6%98%8E%E5%88%A9%E7%94%A8%E7%89%A9%E7%90%86%E7%9F%A5%E8%AF%86%EF%BC%8C%E7%BB%99%E7%BA%B1%E9%97%A8%E5%AE%89%E4%B8%8A%E4%BA%86%E4%B8%80%E6%A0%B9%E5%BC%B9%E7%B0%A7%EF%BC%8C%E5%BD%93%E4%BA%BA%E6%8E%A8%E9%97%A8%E5%87%BA%E5%8E%BB%E5%90%8E%EF%BC%8C%E9%97%A8%E5%B0%B1%E4%BC%9A%E8%87%AA%E5%8A%A8%E5%85%B3%E4%B8%8A%EF%BC%8C%E8%BF%99%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88)
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