有关摩擦力我国著名发明家邹德俊发明的“吸盘式” 挂衣钩如图,将它紧压在平整、清洁的竖直瓷砖墙面上时,可挂上衣帽等物品.如果挂衣钩的吸盘压紧时,它的圆面直径为3.18cm,吸盘圆面压在
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![有关摩擦力我国著名发明家邹德俊发明的“吸盘式” 挂衣钩如图,将它紧压在平整、清洁的竖直瓷砖墙面上时,可挂上衣帽等物品.如果挂衣钩的吸盘压紧时,它的圆面直径为3.18cm,吸盘圆面压在](/uploads/image/z/2224134-54-4.jpg?t=%E6%9C%89%E5%85%B3%E6%91%A9%E6%93%A6%E5%8A%9B%E6%88%91%E5%9B%BD%E8%91%97%E5%90%8D%E5%8F%91%E6%98%8E%E5%AE%B6%E9%82%B9%E5%BE%B7%E4%BF%8A%E5%8F%91%E6%98%8E%E7%9A%84%E2%80%9C%E5%90%B8%E7%9B%98%E5%BC%8F%E2%80%9D+%E6%8C%82%E8%A1%A3%E9%92%A9%E5%A6%82%E5%9B%BE%2C%E5%B0%86%E5%AE%83%E7%B4%A7%E5%8E%8B%E5%9C%A8%E5%B9%B3%E6%95%B4%E3%80%81%E6%B8%85%E6%B4%81%E7%9A%84%E7%AB%96%E7%9B%B4%E7%93%B7%E7%A0%96%E5%A2%99%E9%9D%A2%E4%B8%8A%E6%97%B6%2C%E5%8F%AF%E6%8C%82%E4%B8%8A%E8%A1%A3%E5%B8%BD%E7%AD%89%E7%89%A9%E5%93%81.%E5%A6%82%E6%9E%9C%E6%8C%82%E8%A1%A3%E9%92%A9%E7%9A%84%E5%90%B8%E7%9B%98%E5%8E%8B%E7%B4%A7%E6%97%B6%2C%E5%AE%83%E7%9A%84%E5%9C%86%E9%9D%A2%E7%9B%B4%E5%BE%84%E4%B8%BA3.18cm%2C%E5%90%B8%E7%9B%98%E5%9C%86%E9%9D%A2%E5%8E%8B%E5%9C%A8)
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