interior planet

The magnetometer will study the magnetic properties of Mars to gain insight into the interior of the planet .

地磁仪研究火星的磁场特性，以了解该星体的内部结构。

Now the mystery there is that in order to have a magnetic field , you need to have a interior to the planet that is at least partially molten .

现在神秘的就是为了形成一种磁场，而你需要在行星内部至少有一部分熔融。

The outer surface of the planet would radiate heat into space and freeze . Because the moles form a literal fur coat , when frozen they would insulate the interior of the planet and slow the loss of heat to space .

鼹鼠星的外表面会向外辐射热量并冻结起来，冰冻的外壳就像给整个星球穿了一件毛大衣一样，会把星球内部和外太空隔绝开来，因而会减缓热量向外太空流失的速度。

Closer to the surface , where the pressure would be lower , there would be another obstacle to decomposition-the interior of a mole planet would be low in oxygen .

在接近表面的地方，压强没有这么高，但还需要面临另一个难题：鼹鼠星的内部含氧量非常低。