The merger process is now understood to be a normal part of the evolution of galaxies, including our own Milky Way.

现在这种合并的进程被认为是星系演化过程中很普通的一部分，甚至连我们的银河系也包括在内。

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A normal process has a number of data structures associated with it in the kernel, including a stack and process control block (PCB).

在内核中，普通进程有若干数据结构与之关联，包括一个堆栈，进程控制块(PCB)。

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Unfortunately, many of the most valuable images, including those of the Apollo 11 landing site, had degraded beyond repair, likely due to the normal but damaging process of pausing, rewinding and playing again and again.

FORBES: Fading History: Vintage Films And Photos Crumbling To Dust