This refers to the belief of various theorists who propagate that the earth is a hollow sphere and has an internal su ce area.
这指的是谁宣扬地球是一个中空的球体，并有一个内部表面积各种理论家的信念。
The first say that the earth is the sphere of people, and therefore found seismic sources of earth 's internal structure or block the movement.
第一个说出地球是圆球体的人，并因此发现地震源于地球内部构造或板块之间的运动。
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