The mountainous ridge that circles the equator on the Saturnian moon Iapetus is both weird and spectacular.
来自BBC
It is the eighth - largest satellite and the largest irregularly - shaped satellite of the 48 named Saturnian moons.
土卫七是土星的第八大卫星,也是土星已命名的48个卫星中最大的形状不规则卫星.
Later lie is conveyed in both a Saturnian Scout and a Saturnian mother ship.
稍后被带到一艘土星侦察机和母船上.