That the cyclical change of the shape of the mantle produces potential energy force in earth's crust results in crustal movement.
地幔圈形状周期性变化使地壳产生势能（位能）力导致地壳运动。
That the cyclical change of the shape of the mantle produces potential energy force in earth's crust results in crustal movement.
地幔圈形状周期性变化使地壳产生势能（位能）力导致地壳运动。
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