In reality, sea level varies according to the irregular interior of the planet.
事实上，海平面会根据地球不规则的内部而变化。
2
We know more about outer space than we do about the interior of our planet.
我们对于外太空的了解比地球内部要多。
3
The atmospheric phenomena suggested by jovian cloud tops are caused by convection the transfer of heat from the interior of the planet to its surface and beyond.