一内壁光滑的环形细圆管,位于竖直平面内,环的半径为R一内壁光滑的环形细圆管,位于竖直平面内,环的半径为R(比细管的内径大得多),在圆管中有两个直径略小于细管内径的小球(可视为质
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![一内壁光滑的环形细圆管,位于竖直平面内,环的半径为R一内壁光滑的环形细圆管,位于竖直平面内,环的半径为R(比细管的内径大得多),在圆管中有两个直径略小于细管内径的小球(可视为质](/uploads/image/z/7253843-59-3.jpg?t=%E4%B8%80%E5%86%85%E5%A3%81%E5%85%89%E6%BB%91%E7%9A%84%E7%8E%AF%E5%BD%A2%E7%BB%86%E5%9C%86%E7%AE%A1%2C%E4%BD%8D%E4%BA%8E%E7%AB%96%E7%9B%B4%E5%B9%B3%E9%9D%A2%E5%86%85%2C%E7%8E%AF%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BAR%E4%B8%80%E5%86%85%E5%A3%81%E5%85%89%E6%BB%91%E7%9A%84%E7%8E%AF%E5%BD%A2%E7%BB%86%E5%9C%86%E7%AE%A1%2C%E4%BD%8D%E4%BA%8E%E7%AB%96%E7%9B%B4%E5%B9%B3%E9%9D%A2%E5%86%85%2C%E7%8E%AF%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BAR%EF%BC%88%E6%AF%94%E7%BB%86%E7%AE%A1%E7%9A%84%E5%86%85%E5%BE%84%E5%A4%A7%E5%BE%97%E5%A4%9A%EF%BC%89%2C%E5%9C%A8%E5%9C%86%E7%AE%A1%E4%B8%AD%E6%9C%89%E4%B8%A4%E4%B8%AA%E7%9B%B4%E5%BE%84%E7%95%A5%E5%B0%8F%E4%BA%8E%E7%BB%86%E7%AE%A1%E5%86%85%E5%BE%84%E7%9A%84%E5%B0%8F%E7%90%83%EF%BC%88%E5%8F%AF%E8%A7%86%E4%B8%BA%E8%B4%A8)
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