translation.en: It thought of itself as being disconnected from the Internet, but it was possible for somebody to smuggle a USB drive in there, or something like that, and software got in there that causes the centrifuges, in that case, to actually destroy themselves.
translation.zh: 它自己认为自己是与互联网隔离的， 但是有可能有人 偷偷带进了一个U盘或类似U盘的东西， 和软件潜入工厂，让工厂里的离心分离机 自毁。