浮筒是一种类似于压力容器的密闭空心体,一般被人投入水中,浮筒可以产生浮力。浮筒有很多用途,例如可以拿来系船,也可以用作航标,也可以用来打捞沉船,也可以安装在水上飞机上。[1]

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塞斯纳208的浮筒

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