And I want to point out the difference between core electrons and valence electrons here.

我想指出的是,核电子和价电子,之间的区别。

麻省理工公开课 - 化学原理课程节选

Almost everyone in this room has probably had a segfault at some point or core dump where you end up with this random file called core, which recall is just the contents of memory at the time your program crashed.

几乎这个教室里的所有人，在某个时候,都遇到过段错误，或者通过这个core文件的,存储器内核更新，这就是你的内存出现错误,你的程序崩溃掉了。

哈佛公开课 - 计算机科学课程节选