它并不像我们所在的银河系及其他的螺旋形星系，M66有与之不相符的半径，而且这一星系的中心内核已经消失不见。
Unlike other spiral galaxies, including our own Milky Way, M66 has mismatched arms, and the galaxy's central core has been displaced.
象银河系一样，螺旋星系由一个中间鼓起的扁圆盘和环绕在周围的螺旋形手臂组成。
Spiral galaxies, such as the Milky Way, consist of a flat disk with a bulging center and surrounding spiral arms.
初始均匀的磁场将缠卷而在星系盘中形成螺旋形的结构，其中磁场和星际气体是冻结在一起的。
The initial uniform magnetic field will wind into the spiral structures in the galactic disk, in which the magnetic field and the interstellar gas are frozen together.
初始均匀的磁场将缠卷而在星系盘中形成螺旋形的结构，其中磁场和星际气体是冻结在一起的。
The initial uniform magnetic field will wind into the spiral structures in the galactic disk, in which the magnetic field and the interstellar gas are frozen together.
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