parent galaxy

• 母星系

parent galaxy的用法和样例：

例句

1. In the violence of the encounter, streamers of galactic material are pulled out away from the parent galaxies and the halos of dark matter that surround them.
   在这一剧烈的相撞过程中，星系物质被抛离其母星系以及围绕它们的暗物质。