在打捞沉船的过程中,人们根据所学的浮力知识,巧妙地利用了浮筒

在打捞沉船的过程中,人们根据所学的浮力知识,巧妙地利用了浮筒.适当增加整个浮筒的              ,有利于沉船的上浮.

答案

体积

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