当气体集中形成恒星，所产生的喷流与爆炸会将物质向外推回星系际空间，这是一种负向的反馈机制。

As gas pools, it turns into stars, whose outflows and explosions push material back out into intergalactic space-a process of negative feedback.

youdao

当气体集中形成恒星，所产生的喷流与爆炸会将物质向外推回星系际空间，这是一种负向的反馈机制。

As gas pools, it turns into stars, whose outflows and explosions push material back out into intergalactic space-a process of negative feedback.

youdao