It is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean.

很难看出这个理论如何适用于大西洋中脊和印度洋脊之间的板块。

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As the new crust cools, it sinks under its own weight-a process called subsidence-so the seafloor should be deeper the farther it is from a mid-ocean ridge.

随着这种新地壳的冷却，它会在自身重力的作用下凹陷下去，这个过程被称为“沉降”。因此，在距离海洋中部山脊越远的地方，海底就应该越深。

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Its existence depends entirely on what geologists call the mid-Atlantic ridge.

它的存在完全取决于地质学家所称的中大西洋海脊。

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For instance, when they pulled the wax plates apart slowly, they found rift valleys which are strikingly similar to those in the Mid-Atlantic Ridge.

ECONOMIST: Geophysics