Translation of "sci-fi" into Chinese

In the Sci-Fi section of a San Francisco public library, undercover agents surprised a young man quietly working on his laptop.

科幻小说 区 联邦调查局 的 密探 发现 了 一个 正在 用 笔记本 工作 的 小伙子

I write fiction sci-fi thrillers, so if I say "killer robots," you'd probably think something like this.

我是写科幻惊悚小说的, 所以如果我说"机器人杀手" 你也许会这么想。